Can you guess which pop star is which? Take a look at some of the biggest artists baby pictures and see if you can pick out your favourites!
Bruno Mars Posts Baby Picture On Twitter
The 'It Will Rain' singer can be seen in the adorable photo taken from the early 90's.
Bruno Mars has posted a picture of himself as a baby on his Twitter account earlier today (27th February).
The 'Marry You' star uploaded the adorable picture which shows a younger version of the singer smiling at the camera with a checkered shirt and cute afro hair style.
Alongside the picture, he tweeted: "Pimpin since 92. "
The 'Runaway Baby' star recently returned back to the US following his BRIT Awards 2012 appearance where he performed his single 'Just The Way You Are' and took home International Male Solo Artist on the night.
He thanked his UK fans following the result insisting he had a lot of fun at the ceremony and welcomed being named the "international man of mystery".
Check out Bruno Mars' baby picture below (Picture: Twitter):
You can check out some of pop star's biggest names when they were babies by clicking on the link below.