Former Celebrity Big Brother contestant Jackie Stallone has launched an attack against Britney Spears.

The 'celebrity astrologer' has labelled Britney "a tramp," and questioned her singing talent, according to The Mirror.

Jackie complained, "Britney Spears is a tramp. She looks like she's been dragged through the mall. She's sloppy and cranky and doesn't have the voice like Christina Aguilera.

"Britney just shakes her ass. The day she can't shake her ass, she's out of business. She's trailer trash."

Jackie recently agreed to star in an Osbournes style series for Channel 4.