Disney's streaming chief Kevin Mayer appointed as TikTok CEO from June 1

Walt Disney Co's top streaming executive, Kevin Mayer, will leave the entertainment giant to become the chief executive officer of TikTok, the popular video app owned by China's ByteDance Technology Co

Mayer's appointment will be effective June 1, when he will also become chief operating officer of ByteDance, the Reuters reported.

Mayer led the successful launch of the Disney+ streaming service in November but in February was passed over as Disney's new chief executive.

Under Mayer's leadership, Disney+ collected more than 50 million subscribers in five months.

Disney has named Rebecca Campbell, a 23-year company veteran, to replace