LOL! RIHANNA WEARS NO PANTS TO A DRAKE CONCERT!

Rihanna was flaming hot as she and her gal pals rode the tube to Drake’s sold-out show at London’s O2 Arena on Tuesday. The blonde bombshell wore a black shirt with flames on it and thigh-high leather boots, turning heads as she went through the turnstyle at Waterloo Station. This is not the first time RiRi has chosen the tube as her method of transportation. She was seen riding it to her concerts last summer and the BRIT Awards earlier this year.

“There’s so much traffic. It’s approximately an hour-and-a-half to the O2 every time,” she previously complained to Jonathan Ross. “I hate waking up early and I’m always late, so the tube is like 10 minutes.”

Rihanna just returned from Los Angeles, where she shot the video for “Princess of China” with Coldplay. She stars in the $200 million live-action film Battleship, which opens in theaters on May 18.Where's her pants?