Rihanna took to her Twitter and Instagram accounts to post a picture of herself topless, while she got ready for her upcoming Diamonds World Tour show however this was not a bare it all traditional topless photo.

Chris Brown's girlfriend posted a picture of herself kneeling topless on the couch in her bright yellow underwear with a white towel which she used to cover up a part of her chest. The part of her chest she did not cover revealed tan lines which were result of her tanning poolside over the weekend.

The caption on the picture read "Show time!! #DWT." On her Twitter account Rihanna tweeted, "#ATL is all miiiiiinnneee!!!! I want you on your WORST behavior!!! Tonight is all about you!!! #DiamondsWorldTour."

In the photo the 25-year old topless singer seemed to already have her makeup done and was getting the finally touches put on her already curled hair.

According to E! Yesterday was an important day for the Barbadian beauty when Billboard announced that she had broken the record for the most pop songs by one artist. Rihanna reached the number one spot after her single "Stay" with Mickey Ekko became her 10th chart-topping hit.

The singer tweeted, "It's a big day in Billboard history!!!! We Rihwrite records over here! #youcantgetin...."

The star went on to tweet, "I owe this to my fans and to Billboard! Thank you for the love! It's pretty major!..."

Rihanna is up for 10 Billboard awards, the 2013 Billboard Music Awards ceremony will be held at the MGM Grand Garden Arena in Las Vegas on May 19th.