Led by their dad (who has serious rhythm), the sisters erupt into dance, triggering cheers from the packed stadium.
When they ran through "I Got the Juice," a funky track featuring producer Pharrell Williams, the rehearsal space erupted into a dance playground with some miming a game of double dutch, others freestyling.
Restless, randy, hungry for action: you've seen their kind before in American musicals, ready to erupt into violent dance and show-stopping anthems of youth.
Sweet, sweet CGI neon pulses around the dastardly duo throughout sci-fi/dance music video hybrid Darth Punk - The Funk Awakens as they hunt a young (also leather-clad) woman through bumping clubs and gritty underpasses, and erupt into a dance battle for good and evil.
There was a marching band raising hairs on the back of the necks of the congregation; one section of the audience erupted into Zulu-style song and dance; another rose to chant "We want David!" (it's all right, Miliband indicated from the stage, you've got him).
After "No Type" she went into "Pretend," a song about how seductive self-deception can be, and for a few minutes the music had some of the heady tenderness it has on "Aquarius". But then the track erupted into a bludgeoning retro-'90s dance break.
Later came some martial-arts dances and a tango that erupted into a knife fight.
Bambara Drum and Dance Ensemble, from the Bronx, offered "Journey," which erupted into a swirl of color and movement as drummers created a wall of percussive sound.
The stage erupted into a burst of colorful movement as the young people danced among a forest of potted palms, while the video screen overhead projected their musings about the story line, recorded months earlier.
Once I landed my last dance move on the final beat of the song, the crowd erupted into roaring cheers and applause.
Everyone erupted into laugher.
