The Grammy-winning actress and singer, best known for being John Travolta's love interest in the 1970s movie Grease (and for the hilarious music video of "Physical," as you can see above) comes out of the woodwork for a one-night only concert in Singapore. Make sure to arrive in leotards and headbands, and expect the 67-year-old singer to belt out hits like "I Honestly Love You,""You're The One That I Want," "Summer Nights," and, of course, "Physical."
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