Work and Pensions Secretary Iain Duncan Smith has denied his flagship welfare reform programme is a "debacle" despite admitting that more than £40 million spent on IT for the project had been written off.
Following the alleged bust-up between Chris Brown and Drake's entourages, here's a look at a few other famous celeb rivalries! Mariah and Eminem, Kim Kardashian and Jon Hamm, Jen Aniston and Angelina Jolie, Jon Stewart and Glenn Beck.
10 Unsuccessful Sporting Comebacks
Some were sporting legends others infamous cheats, but all 10 of these high-profile athletes failed to make a comeback.
Music = Hard Up by Bob Bradley and Gavin McGrath