Khloe Kardashian-Odom? Not anymore, at least not on Instagram. Khloe dropped husband Lamar's last name from her profile on the social networking site, Radar reports. But no official word yet on whether Odom's drug problems will mean the end of their marriage; Radar says Khloe will decide after Keeping Up With the Kardashians wraps filming. For what it's worth, E! reports she was wearing her wedding ring at a weekend music festival in Vegas.