Where in the World is Lamar Odom?

Lamar Odom, whereabouts unknown! After his DUI arrest last Friday, Odom supposedly entered rehab for alcohol and drug addiction… or did he?

According to People, CBS and ABC, Odom – who allegedly has a crack cocaine problem – is currently in rehab somewhere in Los Angeles, but Eonline.com says that while he did check in at a facility, he left after less than a day.

TMZ sources disagree, claiming the NBA player has not sought help. The site also offers new details about Odom's drug addiction, saying he moved out of his home with wife Khloé Kardashian in May to live at the Hollywood Roosevelt Hotel.

Sources claim his post-season drug habit is costing $800-$1,000 per day, and that Khloé is fed up; the reality star has supposedly known about Lamar's addiction for two years and is threatening divorce if he doesn't clean up his act.

Kardashian has been vocal on social media, her most recent update being a new profile picture. Instead of a sweet image of her and Lamar, her Twitter page now features her standing on two Mercedes SUVs.