Kate Hudson is helping her friend Sara Foster celebrate her

Kate Hudson is helping her friend Sara Foster celebrate her 43rd birthday… after announcing she's taking a step back from acting to pursue her music career

Kate Hudson was spotted leaving the popular celeb-friendly club The Bird Streets in West Hollywood on Monday evening.

The newly minted pop star – who just released her first single “Talk About Love” – ​​helped her friend Sara Foster ring in her 43rd birthday in style.

The How To Lose a Guy in 10 Days actress wore a black turtleneck knit mini dress.

Kate, 44, wore an oversized fluffy jacket over her shoulders and wore her blonde hair up.

The appearance came after she released her first single and announced that she would be taking a step back from acting to pursue her music career.

Kate Hudson was spotted leaving the popular celeb-friendly club The Bird Streets in West Hollywood on Monday evening

Sara also left her party in an off-the-shoulder, long-sleeved black top and light wash jeans.

She had her long blonde hair tied back with a thick black headband and was carrying several bags containing her birthday presents.

Last week Kate released her much-talked about first single 'Talk About Love' and admitted she wanted her debut song to be something 'delicious and sexy'.

“You only have a first single. And I wanted it to be something delicious and sexy and all the things that I believe in,” Kate revealed in a press release, according to People.

“I wanted it to be open and searching, looking for something powerful. “But I also wanted the music to be rock, pop, dance music and even a little bit of the alternative records that I love,” she said about their musical inspiration for the title.

The Almost Famous actress also announced that she is giving up her acting career in favor of her longtime passion for music.

“It's like the shadow self, these things that you don't see but that are always with you and are a part of you.” Since I've lived alone, I've always had a room for my piano. “I have been writing songs and experiencing life in them since I was a child,” she explained.

“But it's all about the moment and the ability to make sure you can be there for the music. For me, that time has finally come,” she added.

Despite this statement, Hudson will still star in Mindy Kaling's new, as-yet-untitled Netflix series about sports.

Sara Foster also left her party in an off-the-shoulder, long-sleeved black top and light wash jeans

Sara Foster also left her party in an off-the-shoulder, long-sleeved black top and light wash jeans

Last week Kate released her much-talked about first single 'Talk About Love' and admitted she wanted her debut song to be something 'delicious and sexy'.

Last week Kate released her much-talked about first single 'Talk About Love' and admitted she wanted her debut song to be something 'delicious and sexy'.

“You only have a first single.  And I wanted it to be something delicious and sexy and all the things that I believe in,

“You only have a first single. And I wanted it to be something delicious and sexy and all the things that I believe in,” Kate revealed in a press release, according to People

“In the comedy, the only sister in a family of competitive brothers, Isla Gordon (Hudson), has been overlooked and underestimated her entire life,” the series' official synopsis reads, via Digital Spy.

“But when a scandal forces her brother to resign, Isla is unexpectedly named president of the Los Angeles Waves, one of professional basketball's most storied franchises, and her family business.

“Isla is ambitious and finally has the chance to prove to her skeptical brothers, the board and the larger sporting community that she was the right choice for the job, especially in the unpredictable, male-dominated world of sport.”

Kaling will co-write and produce the series and LA Lakers president Jeannie Buss is on board as an executive producer.