Jason Derulo fractures his neck during tour rehearsals

Derulo posted a photo of himself in hospital on his official Facebook page

Jason Derulo has fractured his neck while rehearsing for his forthcoming European tour.

The singer tweeted: "I fractured my neck doing tumbling & acrobatics 4 tour! Always tryin 2 push boundaries 4 YOU! Like my new chain?" (sic)

He then posted a photo on his official Facebook page of himself in hospital wearing a neck brace.

Derulo has now cancelled his upcoming UK tour dates.

The 22-year-old has scored top five hits in the UK singles chart with In My Head, Whatcha Say, Ridin' Solo and Don't Wanna Go Home.

His current album, Future History, was released in September.

In October, Derulo played live at BBC Radio 1's Teen Awards at Wembley Arena.

In the same month, he co-hosted the Mobo (Music Of Black Origin) with Alesha Dixon.