The friendship of Michelle Rodriguez's ex-girlfriend Cara Delevingne and Selena Gomez is reportedly not supported by the "Come & Get It" singer's pals, but that didn't stop the BFFs from being wild at the Ibiza party with Robin Thicke.

An insider told Closer magazine that Selena Gomez's friends are not down with Michelle Rodriguez's ex-girlfriend Cara Delevingne even if the two have been friends since Taylor Swift introduced them together,

"Selena's pals know Cara has a wild side, and they're desperate to keep Selena sober - she's vulnerable, especially as her on-off romance with Justin Bieber ended a few weeks ago," the source said. "Selena is still getting herself back together post-rehab, and friends fear Cara might be a bad influence."

The insider added that Selena Gomez still believes that she's in control, however, she's drawn to Michelle Rodriguez's ex-girlfriend Cara Delevingne and her "carefree attitude."

Cara Delevingne and Selena Gomez partied for the fashion model's on July 22. There's another friend who joined them, Tommy Chiabra, and the tabloids are buzzing after photos surfaced of Selena Gomez displaying a lot of PDA with her rumored new beau.

After the birthday celebration, Michelle Rodriguez's ex-girlfriend Cara Delevingne and Selena Gomez danced on stage at the Leonardo DiCaprio Foundation gala as Robin Thicke sang his hit "Blurred Lines," according to FanShare.

The website said that Cara Delevingne tried to go on stage but her shyness almost got the better of her. Selena Gomez meanwhile, ever the entertainer, immediately danced to the song.

The website also said that Cara Delevingne and Selena Gomez have been spending a lot of time together as they celebrate single life. They attended the Katy Perry concert together, then they had a joyride on a helicopter before partying on a yacht in Ibiza.

The Leonardo DiCaprio Foundation raised over $25 million for the event attended by Selena Gomez and Michelle Rodriguez's ex-girlfriend Cara Delevingne.