(askmen.com) - Britney Spears has been advised to end her friendship with Paris Hilton if she ever wants to rebuild her music career.
The 'Toxic' singer - who befriended the hotel heiress after filing for divorce from Kevin Federline last month - has not been seen partying with Paris for almost two weeks now.
A source told the New York Post newspaper: "Britney has been told by her people that if she ever wants a comeback, she has to stay far away from Paris and start acting like an adult."
Britney - who has two sons, 15-month-old Sean Preston and three-month-old Jayden James, with Kevin - was seen enjoying a string of late nights with Paris immediately after dumping Kevin.
She was also photographed on four occasions without underwear.
The 25-year-old singer has since apologised to her fans on her official website, saying: "Thank God for the new underwear line from Victoria's Secret!
"I look forward to a new year, new music and a new me. I'm just getting started!"
Britney has not released any music for two years though she has been in the recording studios since filing for divorce.