Justin Timberlake and wife Jessica Biel expecting first child

Justin announced on Twitter he was going to become a father

After keeping everyone guessing for weeks, actor-cum-singer Justin Timberlake announced that he and Jessica Biel are expecting their first child.

Taking to social media site Twitter, the singer of mega hits like Sexy Back, Suit and Tie and Cry Me a River announced he was going to become a father.

“Thank you EVERYONE for the Bday wishes! This year, I'm getting the GREATEST GIFT EVER. CAN'T WAIT,” he tweeted on his 34^th birthday.

Thank you EVERYONE for the Bday wishes! This year, I'm getting the GREATEST GIFT EVER. CAN'T WAIT.… http://t.co/Kr2s9U0Jlp

— Justin Timberlake (@jtimberlake) January 31, 2015

The tweet including a picture of him kissing his wife's baby bump. He also revealed they have opted not to find out the gender in advance of the birth.

http://instagram.com/p/yiWvACydvT/

Rumours swirled Biel was expecting when she was photographed with an expanding waistline. However, the couple both remained tight-lipped about the news till Saturday.