By Stephen Lepitak and Ishbel MacleodThe US Twitter accounts of MTV and Black Entertainment Televsion (@BET) appeared to have been the latest high profile accounts to be hacked, following attacks on the accounts of Burger King and Jeep in the last couple of days. The @MTV account has been hacked to feature tweets sent by rival music event BET Experience with the account name changed to 'Hacked MTV'.However, it seems at first glance that the hack has been instigated by a different person from the Burger King and Jeep Twitter takeovers.The hack, rumoured to be a stunt as part of Social Media Week taking place across 10 cities this week, earlier claimed Jeep's account, converting it to tweets seemingly from Cadillac and yesterday the Burger King account tweeted about being bought out by McDonalds. Curiously the marketing director of MTV US, Annie Shoening is said to have tweeted about the hack telling people to check it out on the account, minutes before it actually took place (see second picture). The thoughtful hackers have included a hashtag (#MTVhack), as opposed to the hacks on the car brand and fast food giant, which suggested that the pair had been bought over by rivals.Updated: @mtv has now admitted that the hack was a stunt having tweeted - "we totally catfish-ed you guys. Thanks for playing!".