Plus, new updates on Katy Perry, M.I.A., Bishop Briggs and Niall Horan.


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■ Drake unknowingly picked a fight with a bunch of fanbases when he labeled Rihanna as the “greatest entertainer in the world” during their on-stage performance together at his OVO Fest on Monday.

■ Katy Perry teased her new commercial for Covergirl:

■ M.I.A. and Diplo teamed up for a new song titled “Bird Song” out Aug. 12:

■ Bishop Briggs performs “River” on The Tonight Show:

■ Niall Horan is not thrilled with a fan sneaking a photo while he was asleep on a plane:

■ Troye Sivan performs “Wild” featuring Alessia Cara for Vevo Presents:

■ Amberay – “I Say Stop” music video:

Did we leave anything out?