Rihanna claims she is jealous of Beyonce's good looks.

The "Diamonds" singer has admitted that the 31-year-old "Diva" singer, who is married to her "genius" mentor Jay-Z, makes her feel insecure.

When asked what she thought of Beyonce, the 24-year-old popstar told Bravo's Andy Cohen during a Facebook Live interview last Thursday, "Gorgeous. A stab to my self esteem."

Later, she admitted that despite being a huge fan of Madonna as well and wanting to collaborate with her on a song, she is quite happy being herself: "At this point I am so good with being Rihanna. I love her. Like I'm cool, I'm okay."

The "Rude Boy" singer claimed that in 30 years time she just wants to be happy with her figure. "I want to be skinny. I want to be fierce. I hope my t*ts are still sitting up. Nothing else will matter at that point."

Rihanna's candid comments come just days after she admitted she felt insecure after performing alongside some of the world's top supermodels in the Victoria's Secret Fashion Show in New York City and planned to hit the gym after seeing models including Miranda Kerr, Doutzen Kroes and Adriana Lima's bodies up-close. "I need to hit the gym after seeing these girls. When I sing I'm going to suck in [my stomach] and arch my back and try to remember my songs at the same time," she said.