Olly Murs has reportedly "annoyed" Simon Cowell by joining rival singing and talent show, The Voice. 

Which is understandable really considering Murs shot to fame during his time on X Factor, returning regularly for guest performances and even going on to present the Xtra Factor with Caroline Flack but sure look. The Sun has reported that Murs has joined the BBC show as a coach for its upcoming season. He will be joining Sir Tom Jones, Will.i.am, and Jennifer Hudson in the big red seats. Producers are apparently only delighted to have Murs on board, but not everyone is happy with the move. Cowell, in particular. A 'TV insider' told the paper that:

 “Simon isn’t happy Olly’s swapped allegiances, especially as he left the X Factor to concentrate on his music.”

We can only assume that working on The Voice will give Murs more time to focus on his own work as well as mentoring others in a reality show. Or maybe he was just a bit sick of the X Factor.  Who can say for sure? Murs made his debut on the singing scene back in 2009 when he appeared on the ITV talent show. He made it all the way to final of that series, only to be beaten by Joe McElderry at the last hurdle. But since then, Murs has only gone from strength to strength having released a string of absolute bangers and tried his hand at presenting. He's a dab hand at it too, so it's no wonder that he's being sought after by rival shows. So, what are we thinking - X Factor or The Voice?