It's Sue Heck's time to shine!

On the next all-new episode of The Middle, Sue is ready to break out of her "sophomore slump" with an over-the-top, ultra-extravagant musical number -- and only ET has your exclusive behind-the-scenes look at all the toe-tapping fun!

"It just feels right!" actress Eden Sher gushes in our first-look video above. "It's like the world has been waiting for this. Brad and Sue would just start singing and dancing."

RELATED: 'Once Upon a Time' Bosses Break Down Our 5 Most Anticipated Songs From the Musical Episode!

The Middle's creator, DeAnn Heline, reveals that the La La Land-inspired song is called "March to Your Own Drummer" and it's all about celebrating individuality.

"People who love and identify and care about this character so much, this is such a celebration of her and who she is and what she stands for, so I think people will love that about it," Heline says.

Press play on the video above for all the musical magic and don’t miss the next all-new episode of The Middle on Tuesday, May 9 at 8 p.m. ET/PT on ABC!

Love musicals? Get the scoop on what's coming up in 'Once Upon a Time's musical episode in the player below!