Ed Sheeran Joins Chris Brown to Perform 'Loyal' In Las Vegas

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Ed Sheeran performs at Croke Park on July 24, 2015 in Dublin, Ireland.

Ed Sheeran has another collaboration to add to his ever-growing list: Chris Brown. But this one was perhaps the most unique, as it was done live...in a Las Vegas nightclub.

During a visit to Sin City for Labor Day weekend, Sheeran dropped in on Brown's performance at Drai's nightclub Sunday (Sept. 6) to collab on Brown's song "Loyal," which Sheeran has been known to mash-up with his own hit, "Don't" on tour. The two initially teased the track with an a cappella rendition, but later went all-out -- with Sheeran taking over Lil Wayne's part -- when backed by the DJ. 

In addition to his "Loyal" contribution, Sheeran sang "Thinking Out Loud" as fellow surprise guest Nelly swayed behind him. Trey Songz and Jeremih also made an appearance during the star-studded night of cameos. Watch a fan-filmed video of "Loyal" below.