Credit: Michael Rozman/Warner Bros.

Rihanna is no stranger to body art.

On Monday's Ellen DeGeneres Show, she reveals how many tattoos she actually has.

"Approximately 13," she says.

Her latest one is across her chest.

"It reads, 'Never a failure always a lesson,'" says the singer, 21, who split with Chris Brown last year after he violently beat her. "It's basically saying that it's ok to make a mistake, just don't make them twice."

Rihanna says she got the tattoo backwards so she can read it "in the mirror to myself."

Rihanna, who was recently spotted vacationing with L.A. Dodger Matt Kemp, also opens up about her love life.

"I'm single," she says, echoing similar statements she said in a Thursday radio interview.

It was recently reported that Rihanna said she wants to fall in love by 31.

The singer tells DeGeneres though she never said that, "I hope I am [in love by then]. 31 is a decade away. I better be in love by then."