12 January 2013, 09:06
The 'Cry Me A River' singer has been responding to questions on his music return with the mysterious hashtag.
Justin Timberlake's fans have been speculating that the singer's forthcoming new album will be called 'You Never Know' after the 'Sexy Back' star posted a series of mysterious responses on his Twitter account.
The 'What Goes Around' singer surprised the world this week when he started a countdown clock to his new record announcement and confirmed his return to music.
Since the news broke, fans have been tweeting Justin with questions to the content of his latest record, something which he has been responding with a simple "#YouNeverKnow".
He also wrote a message to declare that he was enjoying the constant speculation.
He tweeted: "I love you guys. But, this teasing is just too much fun! Tick, tock, tick, tock... #YouNeverKnow #JT2013."
A new album from the singer will be his first since 2006's 'FutureSex/LoveSounds' as he turned his attention to the movie business and his acting career.
Justin has gone on to star in such hit movies as The Social Network, Friends With Benefits and Sci-Fi flick In Time.
The former N*Sync star will announce details on his new music this Monday (13th January).