Tonight is the night that “Glee” fans have been waiting for four months — the Spring season premiere on Fox at 9:28PM ET/8:28PM CST. (The delay is due to “American Idol.”)

We’re in for an extra special treat, as Tony Award winner Idina Menzel (Wicked) and Tony nominee Jonathan Groff (Spring Awakening) are making guest appearances. Menzel plays the role of Shelby, coach of the rival glee club, Vocal Adrenaline, while Groff plays the lead member of Vocal Adrenaline. Interestingly, Groff, who played opposite Lea Michele in Spring Awakening, also portrays a potential romantic interest for Rachel (Lea Michele).

As if that wasn’t enough, we’ll also be treated to the world premiere of Sue Sylvester’s remake of Madonna’s “Vogue” video (a teaser, no doubt, for “Glee’s” April 20 all-Madonna episode). Sue’s version is being described as “an homage to Madonna with a brilliant shot-by-shot recreation of the groundbreaking music video,” and will feature Sue Sylvester (Jane Lynch), Kurt (Chris Colfer), and Mercedes (Amber Riley). (After seeing Chris Colfer’s moves to “Single Ladies,” I’m really looking forward to seeing this!)

In the ‘Hell-o’ episode, “Glee” picks up as New Directions is fresh off their monumental win at Sectionals and feeling on top of the world. With an extra spring in their step, they get to work on new numbers for Regionals – including a memorable rendition of The Beatles’ “Hello, Goodbye.” But when Rachel and Finn’s budding romance hits a bump in the road after she becomes involved with a competitor, Jesse St. James (Groff), it threatens to derail the entire club. Mr. Scheuster pays a visit to Shelby Corcoran (Menzel), coach of Vocal Adrenaline, to confirm Jesse’s motives. Meanwhile, Will is newly single, but is he ready to take his relationship with Emma to the next level? And to top it all off, Sue Sylvester returns from her condo in Boca with a renewed focus on destroying Will and disbanding the glee club.

Fans will also be excited about other upcoming highlights of the next nine episodes of the first season, which include an all-Madonna episode (April 20, featuring songs including “Express Yourself,” “Like a Prayer,” “Vogue,” and more), a Lady Gaga-centric episode, and guest stars including Neil Patrick Harris, Olivia Newton-John, and Kristin Chenoweth, who will likely reprise her previous role as a former classmate of Mr. Shuester.

The cast of “Glee” includes Tony nominee Matthew Morrison (South Pacific, Light in the Piazza, Hairspray), Lea Michele (Spring Awakening), Jenna Ushkowitz (Spring Awakening), Dianna Agron, Chris Colfer, Kevin McHale, Cory Monteith, Amber Riley, Mark Salling, Jane Lynch, Jayma Mays, and Jessalyn Gilsig.

Can’t get enough Glee? Check out Glee: The Music Vol. 2 on Amazon, iTunes, Amazon mp3 and
Glee: The Music Vol. 1 on Amazon, iTunes, Amazon mp3. And don’t forget Glee: Vol. 1: Road to Sectionals, featuring the first 13 episodes of season one!

Also, be sure to check out the cast of “Glee” appearance on Oprah, and Matthew Morrison’s appearance on Ellen.

Check out the videos below: