The singer, who gave birth to her first daughter Maxwell Drew with sportsman Eric Johnson earlier this month, admitted that she is rooting for the contestant on Wednesday (May 23).
© WENN
© Fox / Michael Becker
She wrote on Twitter: "Crossing my fingers for hot stuff Phillip Phillips!!"
The 21-year-old sang three songs on last night's show, where he was competing against 16-year-old Jessica Sanchez.
Fashion Star mentor Jessica added: "I want his record NOW!!!"
However, Sanchez has been tipped to win the show by Digital Spy readers. She pulled in a whopping 64.7% of votes in our finalists poll.
Watch Phillip Phillips perform 'Home' on last night's show below:
