Madonna covered Britney Spears' "Toxic," taunted Donald Trump, twerked with Ariana Grande and reunited with ex-husband Sean Penn during an event Friday at Miami's Art Basel that raised $7.5 million for the singer's Raising Malawi charity.
Billed as a "Night of Art, Mischief &
This article originally appeared on www.rollingstone.com: Watch Madonna’s Sultry Cover of Britney Spears’ ‘Toxic’ at Art Basel