Molina (Sweeney Todd, Candide) and Cearley (All Shook Up, Next to Normal) played everything from the cello, ukulele, guitar and glockenspiel to the melodica during the evening that featured special guests Will Swenson (Hair, Priscilla...), Susan Blackwell ([title of show]), Ashley Brown (Mary Poppins), Jessica Hendy (Aida, Cats, Amour), Mitchell Jarvis (Rock of Ages, Fiddler on the Roof) and Wesley Taylor ("Smash," Rock of Ages, The Addams Family).

Here's a look at highlights from the concert:

The Skivvies - "Hot in Here"/"It's Hot Up Here"/"Hot Hot Hot."

Will Swenson - "Get Low."

The Skivvies and Wesley Taylor - "Call Your Girlfriend"/"Call Me"/"Call Me Maybe."

The Skivvies and Susan Blackwell - "Good Day Sunshine"/"Burgundy Shoes."

The Skivvies and Ashley Brown - "Umbrella."

The Skivvies and Jessica Hendy - "My Strongest Suit."

The Skivvies - "I Feel The Earth Move."

The Skivvies and Mitch Jarvis - "Careless Whisper."

The Skivvies - "We Found Love."

The Skivvies - "Video Killed the Radio Star."