What do you do when you get invited to a party thrown by one of your idols? You dance with her.

Maggie Gyllenhaal grew up listening to Madonna records, dressing like Madonna and lip syncing to her music. And now that she's a star in her own right, Gyllenhaal got invited to one of Madonna's parties.

"I don't know Madonna," Gyllenhaal told Ellen DeGeneres on 'The Ellen DeGeneres Show' (weekdays, syndicated). But "someone introduced me to her at the party and kind of led me over to her. She didn't say hi, she just started dancing with me ... and I was drunk enough that I kinda of danced with her." And it's a good thing, too, cause later Madonna was dancing with Gyllenhaal's husband (Peter Sarsgaard).

Watch the video after the jump.What do you do when you get invited to a party thrown by one of your idols? You dance with her.

Maggie Gyllenhaal grew up listening to Madonna records, dressing like Madonna and lip syncing to her music. And now that she's a star in her own right, Gyllenhaal got invited to one of Madonna's parties.

"I don't know Madonna," Gyllenhaal told Ellen DeGeneres on 'The Ellen DeGeneres Show' (weekdays, syndicated). But "someone introduced me to her at the party and kind of led me over to her. She didn't say hi, she just started dancing with me ... and I was drunk enough that I kinda of danced with her." And it's a good thing, too, cause later Madonna was dancing with Gyllenhaal's husband (Peter Sarsgaard).