Billie Piper has firmly established herself as one of the most popular and versatile stars working today. Not to take anything away from her reputable résumé, but being introduced to the nation as the Doctor's coveted companion, Rose Tyler, certainly helped. Even Billie herself had admitted that her portrayal of one of the most popular companions in Doctor Who history was directly responsible for her subsequent screen success (luckily she's got the talent to boot!) but it actually wasn't her involvement in one of TV's most popular dramas that made her a beloved household name. In fact, she experienced her initial foray into stardom at the age of just 15, after being offered a record deal which subsequently made her the youngest solo artist to ever debut with a #1 single when her first song, Because We Want To, became a classic pop anthem of the 90s. The multiple BRIT nominee retired indefinitely from the music industry in the early 2000s and promptly set her sights on pursuing an acting career instead. It's safe to say that it was one of the best decisions she's ever made and, as professional transformations go, her journey from pop princess to national treasure has been a resounding success. Want to find out more about one of Britain's most believed award winning actress? Luckily for you, here are 10 things you never knew about Billie Piper...