Quickly, it turned into a big performance about the SNL music group and some of their best digital shorts. And it all kicked ...

Lady Gaga delivered a performance that was fitting for Saturday Night Live's "Homecoming Concert," and sang the Lonely Island's viral "Dick in a Box." ...

Lady Gaga joined forces with Andy Samberg in this hilarious Lonely Island tribute during 'SNL50: The Homecoming Concert.' ...

After a bit, though, Chris Parnell entered the scene to duet with Samberg on “Lazy Sunday,” which then led to Bad Bunny ...

Andy Samberg and Lady Gaga teamed up to offer their 'Dick in a Box' at 'SNL50: The Homecoming Concert,' kicking off an epic Lonely Island medley that also featured Eddie Vedder, Bad Bunny, T-Pain, and ...

One-time-only collaborations included Bonnie Raitt and Chris Martin. Arcade Fire, David Byrne, Post Malone and Nirvana.

"SNL50: The Homecoming Concert" romped at Radio City Music Hall Friday. Inside the musical bash featuring Cher, Lady Gaga, ...

The Homecoming Concert' at Radio City Music Hall in New York City on Friday, Feb. 14. She and Andy Samberg kicked off an epic ...

Lady Gaga and Bruno Mars ... the Year and Best Pop Duo/Group Performance for their track Die With a Smile and news of the performance will unlikely surprise Gaga's fans as she has performed ...

After performing an unreleased song about hope amid chaos at the Los Angeles benefit concert FireAid Thursday, Lady Gaga will perform a tribute to those affected by the fires alongside Bruno Mars ...

Bruno Mars and Lady Gaga are set to perform a tribute to Los Angeles at the 67th Grammy Awards. Kevin Mazur/Getty Images for The Recording Academy/Kevin Mazur/Getty Images for Park MGM Las Vegas ...