Rihanna's 777 tour is proving to be anything but modest, to say the least. (But then again, it's RiRi. Is anyone surprised?)

The singer is hitting seven cities worldwide in seven days to celebrate her seventh album Unapologetic, and her performances have been chock full of skin! After performing without pants in Paris, opting instead for an oversized shirt, she reportedly performed her concert in Stockholm without a bra! What did her tour stylist Mel Ottenberg have to say about it? "Who cares? Why does someone have to wear a bra?" he said, according to E! Online. "She does what she wants to do and she's hot."

Rihanna wasn't the only one on her tour to strip down though. Find out who else joined her after the jump!