The song was released on Friday, alongside a second single titled "Shot 'O Clock." The music video for "Birthday" has the 30-year-old enjoying herself at a lavish house party while Tyga and YG arrive to deliver their respective verses.
"Pull up in this bitch with my birthday twin (Yeah) / Body's gonna body in a big body Benz (Mwah) / I'ma bring my bitches, bring your rich nigga friends / From the jet to the yacht, naked in the south of France / It's my birthday, bitch, these my birthday rules (Hey) /I ain't spendin' nothin', all the drinks on you," Saweetie raps over the track.
The single marks the first time Saweetie and YG have linked up since they all but confirmed they were together when spotted holding hands during a dinner date in West Hollywood. In footage from that night, YG is seen getting out of the driver's side of his car to greet Saweetie on the passenger side and help her out of the vehicle. The pair walked together and held hands, revealing their relationship secret.
The two stars were also seen together enjoying each other's time backstage during Rolling Loud California. They were then spotted on a romantic getaway in Cabo at the end of May, with PDA-filled pics showing them kissing and snuggling in a pool together.
YG and Saweetie will be htting the road together this fall for their co-headlining tour alongside Tyga dubbed the "STR8 to the Klub Tour." The tour will kick off in the fall and marks YG's second headlining tour in the past year and the first headlining run for Tyga and Saweetie.
The three artists will play 14 arena shows, kicking the jaunt off on Sept 21 in Sacramento and finishing on Nov. 21 in Los Angeles. Other stops include San Francisco, Las Vegas, Tucson, and Vancouver.