Rihanna's toned body comes with a high price of lawsuit. The "Rude Boy" singer is being sued by her personal trainer for allegedly failing to pay for her services.

Cindy Percival filed the lawsuit last week in Los Angeles County Superior Court, alleging the 22-year-old Barbadian beauty owes her $26,144.14 in unpaid wages from 2009.

According to the lawsuit obtained by TMZ, Percival was hired to perform "exclusive personal training services" for Rihanna for the agreed fee of $1,500 per day. But the Grammy winner never issued a check for a couple of weeks of work between September and October.

The trainer wants an additional $2,644.14 in travel expenses, claiming she had to travel all over Europe to meet with the singer.

Meanwhile, Rihanna is set to launch a U.K. tour in April. She will kick off her Rated R Tour on April 16 in Belgium. icelebz