After celebrating his 24th birthday over the weekend, Metro Boomin links up with Travis Scott for a surprise collaboration in the form of “Blue Pill.”

Over spacious Metro production, La Flame brags about “floating off that blue pill” and “blue drank.” “We go up in the valley,” he sings. “Where they spend mills on the mayonnaise.”

Metro unleashed the track as a b-day present for fans. “Got a late birthday gift for all my supporters,” he tweeted. “took a few years off but we back. #daysafter.”

This is a return to form for Travis and Metro, who have collaborated on a series of cuts, including Rodeo’s “Pornography,” “3500,” and “Wasted.”

Pop the “Blue Pill” below.