Despite reports that Contostavlos had been eying a 500,000 pounds contract from Channel 5, a spokesperson for her has now confirmed she won't actually be taking part, reported Digital Spy.
"Tulisa is definitely not appearing on Celebrity Big Brother this year. Tulisa's plans for 2016 will be announced soon," her representative said.
Contostavlos has often been tipped as a "Celebrity Big Brother" contender, since her former N-Dubz bandmate Dappy finished runner-up on the Channel 5 series in 2014.
The singer's previous reality TV experience includes judging "The X Factor", upon which she helped launch the career of Little Mix.