She played the main role of Tina Ravel in the French teen musical TV series Studio 24 [fr; it; pt] from 2008 to 2011.

[2] When Priscilla was eleven years old, she took part in the television children's talent show Drôles de petits champions, on 23 February 2001, on TF1, and was noticed by a producer from the American company Metro-Goldwyn-Mayer, Patrick Debort.

On 25 September, she released her first single "Quand je serai jeune" under the record company Sony BMG.

That same year, Priscilla went to New York City and met her idol Britney Spears, who presented her with a Gold record for her single "Quand je serai jeune".

[3] Starting from February 2008 Betti played the main role of Tina Ravel in the musical teen TV series Studio 24 [fr; it; pt] on France 2 in the block programming KD2A.