Khloe Kardashian arrives at the 2014 Elton John AIDS Foundation Oscar Party in West Hollywood
Television personality Khloe Kardashian arrives at the 2014 Elton John AIDS Foundation Oscar Party in West Hollywood, California March 2, 2014. REUTERS/Gus Ruelas REUTERS/Gus Ruelas

Lamar Odom has reportedly been eager to win a second chance at love with ex-wife Khloe Kardashian, now that she is single again. A source close to Khloe has revealed what Lamar has to do to win Khloe' heart.

Lamar doesn't need to do any seduction or grand gestures because Khloe already has longstanding genuine attraction for him. All that Lamar has to do is to prove that he is clean and has completely moved on from his old bad habits.

"He would have to prove that he's really changed," a source told Hollywood Life. "He'd have to go to rehab, which he hasn't done yet," the source added. According to the source, there is no doubt that Khloe still has feelings for the former National Basketball Association (NBA) player so a reconciliation between the two is definitely possible.

Lamar has recently dumped his bad lifestyle choices in an effort to win Khloe back. He was aware how his old ways have ruined not only his relationship with Khloe, but also his relationship with his children. Thus, he has vowed not to go back to his old self. Lamar has apparently ditched bad influences and some of the pals that he had in the past. He even changed his number. "He's not about that life anymore," another insider revealed.

Lamar has previously checked himself in a rehab. In September 2013, Lamar has entered a rehabilitation facility founded by civil litigator Robert Shapiro. However, Lamar checked himself out the very next day. It has been revealed that the only reason why Lamar entered rehab was because of Shapiro's demand for him to do so in exchange of the lawyer's legal assistance. Shapiro has worked for other celebrities including Lindsay Lohan, Carson Daly, O.J. Simpson, Darryl Strawberry, Linda Lovelace, Johnny Carson and the Kardashian clan.

The 34-year-old basketball player has struggled with drug addiction in the past. In 2001, Lamar has violated NBA's anti-drug program twice in eight months. He was still playing for the Los Angeles Clippers then. In 2003, Lamar has admitted to marijuana use during a press conference with reporters and fans.

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