We don't know who dressed bolder between Miley and Rihanna, but we know who spent bigger!
When it came to the charity auction portion of the American Foundation for AIDS Research, Miley was the fiercest of them all, outbidding everyone to the tune of $300,000 for a nude woman print by photographer Ryan McGinley.
Later Miley, RiRi, and honoree Tom Ford donated another $200k each to the organization!
So giving! But Miley humbly blamed her generosity on the a-a-a-a-a-alcohol saying: