Britney Spears� first husband has claimed the pop star�s �problem with drugs� goes back to their brief marriage in 2004.
Jason Alexander revealed the pair stayed awake for 72 hours using cocaine and ecstasy whilst they partied in Las Vegas New Year 2004, which would explain how they came to get married for just 55 hours.
He claims, �She definitely had a problem with drugs when we were together - and that was three years ago.
"We used ecstasy at night to party and cocaine during the day to stay awake. Then we would take downers like Valium to come down and rest. Britney stayed up three days straight over New Year. I couldn't keep up. "
Britney is currently back in rehab after increasingly bizarre and violent behaviour over the last couple of week, including deciding it was a good idea to shave all her hair off.