Leona Lewis reportedly made a huge chunk of change for being the entertainment at a birthday party last weekend. The ‘Happy’ singer supposedly made $150,000 and was flown by private jet to Monte Carlo to perform at Romania’s richest man’s exclusive, 25-person birthday bash on Saturday.

Leona Lewis then flew to Germany where she wowed millions of TV viewers with a performance on hugely popular show Wetten Dass yesterday, and sported a sexy white dress.

It’s been a big year for Leona, and she hasn’t been game for quite everything that’s come her way, however. It’s been said that Leona had been offered over $1.5 million to ditch her clothes for the nudie mag Playboy. Although she was apparently “flattered” by the request, she politely passed: “I’m not that confident! I just don’t think I could pose nude, because I’m not that brave.”

Although she agreed to perform at the private party, Leona has previously turned down other lucrative earning opportunities. Last month, it emerged Leona had been offered over $1.5m (1m) to appear naked in men’s magazine Playboy.

Leona Lewis is not the only pop star to cash in with a private performance.

Rihanna is reportedly set to earn $500,000 (340,000) to perform at a New Year’s Eve party.