Fergie is a famous music starShe sang with The Black Eyed PeasLearn what she is up to latelyFergie, now age 50, still looks ...

Fergie marked her 50th birthday on Thursday, March 27, with a letter dedicated to her younger self on Instagram.

It’s worth saying that the term 'rock star' has changed a great deal over the years. Now, it is used in a much more general setting to describe someone good.