AceShowbiz -

Rihanna might become the latest person caught in Bieber fever after YouTube sensation Justin Bieber showed her more than she might expect for. On Monday, November 15, the "Umbrella" hitmaker wrote on her Twitter page, "Justin Bieber just flashed me his abs in the middle of a restaurant!"

And it seemed that Rihanna enjoyed the graphic glimpse as she teased, "Wow! He actually had a lil 6 pack! Sexy,lol!" However, Rihanna refused to end up receiving death threats from Bieber's devotees just like what happened to Kim Kardashian after the "Baby" hitmaker referred her as his girlfriend. The "What's My Name?" hitmaker sent a plea, "#Beliebersplzdontkillme."

Minutes later, Bieber responded to Rihanna's flashing-abs tweet. The 16-year-old singer wrote, "@rihanna never that. Its always love," and posted a picture of him and Rihanna, who sported her long new hair-do, standing next to each other.

Rihanna is releasing her newest record "Loud" on Tuesday, November 16. She marked her album release with a performance on MTV's "The Seven". Meanwhile, Bieber is about to out his unplugged album "My Worlds Acoustic" on Friday, November 26.