Chris Stapleton and his friend Justin Timberlake seem to be making onstage collaborations a pretty regular thing now. The two singers teamed up once again on Wednesday (2/21), taking the stage at the 2018 Brit Awards in London to perform their collaborative single, "Say Something." After Timberlake kicked things off with a solo performance of his Man of the Woods album track "Midnight Summer Jam," the opening of "Say Something" started to play and Stapleton came out to help his friend sing the tune. In addition to previously performing "Say Something" on The Tonight Show Starring Jimmy Fallon following this year's Super Bowl, the two also teamed up at the 2017 Pilgrimage Music & Cultural Festival in Tennessee and the 2015 CMA Awards.