Travis Barker performs with a nine year old blind boy in LA

Travis Barker performs with a nine-year-old blind boy in LA and sponsors him a trip around the world

Blink-182 drummer Travis Barker performed with a blind boy named Grayson Roberts at motivational speaker Charlie “Rocket” Jabaley’s Dream Factory in downtown Los Angeles last Friday night.

It was the 35-year-old podcaster who first spotted the plucky nine-year-old last Monday manning a lemonade stand outside his home to raise money so he could travel and “see” the world (including the Great Wall of China), while he still has “a little sight in one eye.”

Little Grayson was born with a rare condition called Axenfeld-Rieger Syndrome, which caused him to develop glaucoma (pressure inside the eye) and aniridia (missing iris), requiring him to undergo 32 surgeries including 5 corneal transplants.

Charlie – who survived a brain tumor himself – vowed to help Roberts transform his humble lemonade stand into a Once Upon a Coconut-sponsored lemonade stand event called “Limitless Lemonade,” which drew “hundreds” of people to support his dream.

The fourth-grader designed his own Limitless Lemonade logo on an iPad, went to Target to shop for unique lemonade flavors, and created a secret recipe for the contestants, who stopped by between 5:30 and 8:00 p.m.

Cute: Blink-182 drummer Travis Barker performed with a blind boy named Grayson Roberts at motivational speaker Charlie “Rocket” Jabaley’s Dream Factory in downtown Los Angeles last Friday night

Grayson was surprised by the visit of the 47-year-old native of Southern California, who appeared with several drumsticks in hand.

“What’s the matter, Grayson? I am glad to meet you. I brought you some drumsticks. “I saw a video of you playing drums and singing,” Travis said.

“I brought some donations for you. I brought some money for you.’

A source told ET Sunday that Barker made a “generous amount of money” after learning about the incident through his 19-year-old son Landon Asher Barker’s friend, Mikey Tua.

When Roberts asked, “Do you think we could play drums and sing together?” the founder of DTA Records was happy to oblige.

The excited kid asked to perform a cover of Adam Jensen’s 2017 song “Street Fight” with Travis, to which his mother apologized, “We didn’t practice any of Travis’ songs.”

“I get it,” Barker smiled as he sat on the drums. “I’ll learn that in a moment.”

After the song, the heavily tattooed musician led the crowd with a chant of “Grayson” before downing a mason jar of the blue soda that Roberts dubbed “Sky Blue-nicorn 2.2.”

'He has no customers': It was the 35-year-old podcaster who first spotted the plucky nine-year-old last Monday manning a lemonade stand outside his home to raise money so he could travel and 'see' the world ( including the Great Wall of China), while still having

‘He has no customers’: It was the 35-year-old podcaster who first spotted the plucky nine-year-old last Monday manning a lemonade stand outside his home to raise money so he could travel and ‘see’ the world ( including the Great Wall of China), while still having “a small vision in one eye.”

Making lemonade from lemons: Little Grayson was born with a rare condition called Axenfeld-Rieger Syndrome, which resulted in glaucoma (pressure in the eye) and aniridia (missing iris) and underwent 32 surgeries including 5 corneal transplants

Making lemonade from lemons: Little Grayson was born with a rare condition called Axenfeld-Rieger Syndrome, which resulted in glaucoma (pressure in the eye) and aniridia (missing iris) and underwent 32 surgeries including 5 corneal transplants

Upgrade: Charlie - who survived a brain tumor himself - vowed to help Roberts transform his humble lemonade stand into a Once Upon a Coconut-sponsored lemonade stand event called

Upgrade: Charlie – who survived a brain tumor himself – vowed to help Roberts transform his humble lemonade stand into a Once Upon a Coconut-sponsored lemonade stand event called “Limitless Lemonade,” which drew “hundreds” of people to support his dream

The fourth grader was surprised by the visit of the 47-year-old native of Southern California, who appeared with several drumsticks in hand 1692577103 946 Travis Barker performs with a nine year old blind boy in LA

“What’s up, Grayson?” The fourth-grader was surprised by the visit of the 47-year-old native of Southern California, who appeared with several drumsticks in hand

Travis said,

Travis said, “Nice to meet you.” I brought you some drumsticks. I saw a video of you playing drums and singing. I brought some donations for you. I brought some money for you.

A source told ET Sunday that Barker made a

A source told ET Sunday that Barker made a “generous amount of money” after learning about the incident through his 19-year-old son Landon Asher Barker’s friend, Mikey Tua

When Grayson asked,

When Grayson asked, “Do you think we could play drums and sing together?” the founder of DTA Records was happy to oblige

Roberts asked to perform a cover of Adam Jensen's 2017 song

Roberts asked to perform a cover of Adam Jensen’s 2017 song “Street Fight” with Travis, as his mother apologized, “We didn’t practice any of Travis’ songs.”

1692577111 884 Travis Barker performs with a nine year old blind boy in LA

“I get it,” Barker smiled as he sat on the drums. “I’ll learn that soon”

rock out!  After the song, the heavily tattooed musician led the crowd with a chant of

rock out! After the song, the heavily tattooed musician led the crowd with a chant of “Grayson” before downing a mason jar of the blue lemonade, which the excited kid dubbed “Sky Blue-nicorn 2.2.”

Hooray!  The audience cheers after the performance The crowd was substantial but did not appear to be

Hooray! The audience cheers after the performance

Grayson -

Grayson – “loves his new drumsticks” – later gushed on Instagram, “Thanks Travis for taking a break while @Filipina stops by my lemonade stand with your music video and allows me to perform with you!” It was so great . And thank you for letting me choose the color of the sprinkles because who doesn’t love sprinkles?!’

On hiatus: Travis' Grammy-nominated rock band - which includes guitarist/vocalist Tom DeLonge and bassist/vocalist Mark Hoppus - will resume their 93-date Blink 182 world tour on September 1-2 at OVO Hydro in Glasgow, Scotland (pictured on July 7th).  )

On hiatus: Travis’ Grammy-nominated rock band – which includes guitarist/vocalist Tom DeLonge and bassist/vocalist Mark Hoppus – will resume their 93-date Blink 182 world tour on September 1-2 at OVO Hydro in Glasgow, Scotland (pictured on July 7th). )

“Thank you Travis for taking a break while @Filipina stops by my lemonade stand to watch your music video and allow me to perform with you!” Grayson later gushed on Instagram.

“It was great. And thank you for letting me choose the color of the sprinkles because who doesn’t love sprinkles?!”

Travis and his third wife Kourtney Kardashian – who each have three children from previous relationships – will soon give birth to their first child together, a son.

Barker’s Grammy-nominated rock band – which includes bassist-vocalist Mark Hoppus and guitarist-vocalist Tom DeLonge – will continue their 93-date Blink 182 world tour on September 1-2 at OVO Hydro in Glasgow, Scotland.

The expectant 44-year-old will eagerly await Blink-182’s next big breakthrough, which takes place from October 23rd to February 7th.

Fans can learn more about the 15-month married Calabasas neighbor in the 10-episode fourth season of The Kardashians, which premieres September 28 on Hulu.