Chris Brown and I are both 'Loyal'

Ed Sheeran has just proven he's a loyal fan to Chris Brown after he joined him on stage to deliver one of his most successful hits in his career.

Sheeran dropped in on Brown's performance at Drai's nightclub Sunday night to collaborate 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 acappella 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, the singer thrilled the crowd with his hit son 'Thinking Out Loud' as fellow surprise guest Nelly swayed behind him.

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Other star who made guest during the star-studded night of cameos included Trey Songz and Jeremy. Watch a fan-filmed video of "Loyal" below.