This season's Glee episode themes ran the gamut from broad concepts like "Home" and "Mash-Up," to musical genres like "Ballad" and "Funk," to entire hours dedicated to musical icons like Madonna, Lady Gaga and, next week, Journey.

Glee creator Ryan Murphy has said that he's interested in more artist-themed episodes, which may include a Britney Spears homage for season 2, though star Matthew Morrison admitted he hopes the show "doesn't go along that route."

We'll let the Glee boys duke it out about the merits of Ms. Spears, but the idea got us thinking: what other themes would we love to see featured in Glee season 2? So many stars, genres and concepts came to mind, but we managed to narrow it down to our nine absolute dream themes:

One-Hit Wonders

To teach a lesson about the fleeting nature of stardom and popularity, Mr. Schue could assign the Glee clubbers to revive those hits that found a special place in our hearts, even though the artists never did. The trick, of course, would be to feature one-hit wonders that actually deserved their chart-topping status. Classics like Aha's "Take On Me," Blind Melon's "No Rain"? Yes, please! "The Macarena" and "Who Let the Dogs Out?" An hour of that might qualify as torture under the Geneva Conventions.


Elton John and Billy Joel

Neil Patrick Harris graced our ears with his rendition of Joel's "Piano Man" this season, and now we want more! Each such a massive icon in his own right, John or Joel could easily carry an entire Glee episode. But together, the world's favorite piano men would pack a magical musical punch full of kicking group numbers ("Saturday Night's Alright," "We Didn't Start the Fire") and touching solo songs about love, loss and independence that just call out to get Glee-ified, like Elton's "Your Song," and Billy's "My Life."


Boy Bands and Girl Groups

The musical staple of the '90s, boy bands and girl groups like 'N Sync and The Spice Girls have been criticized for their manufactured pop and sugary lyrics, but that doesn't mean they couldn't teach the Glee kids a thing or two about harmonizing, marketing and working as a well-oiled machine. If you're iffy on the idea, two words ought to change your tune: Destiny's. Child. Plus: just imagine the dance numbers!


Elvis

The Gleeks learned lessons from two queens of pop this season (Madonna and Lady Gaga) so isn't it time for The King to bestow his rock 'n' roll wisdom? Elvis was a true original across the board -- the way he sang, the way he moved, and the way he exuded confidence and sexuality at a time when it was considered obscene -- but even his "Hound Dog" was a cover of an older rhythm and blues hit. If they could get the rights to his songs, modern Glee spins on Elvis classics like "All Shook Up," "Don't Be Cruel" and "Can't Help Falling In Love" would be the definition of epic.


David Bowie

Let's say, sometime in season 2, that the Gleeks are having trouble combining their lessons on originality, theatricality and versatility. Well, they need look no further than the one and only David Bowie, the true icon of musical invention and reinvention. Whether it's his psychedelic "Space Oddity," rock 'n' roll "Rebel Rebel" or the electronic-influenced "Under Pressure," Bowie's hit-heavy, genre-sprawling catalog and love for costume and alternate personas would make for one extremely entertaining episode.


Teen Songs

As much as we love Glee for its grand musical numbers, at its core the show is about how scary, lonely and downright painful growing up can be -- especially as an outsider. We say season 2 of Glee should take that theme and run with it in an episode of classic "teen" songs (The Who's "Baba O'Riley," Nirvana's "Smells Like Teen Spirit") and songs about adolescent growing pains (The Beach Boys' "Wouldn't It Be Nice," Springsteen's "Growin' Up"). And we can already picture Puck belting out "I'm Eighteen" by Alice Cooper.


Outlaw Country

Johnny Cash. Willie Nelson. Waylon Jennings. If these names don't scream "bad ass" to you, then you have some definitions to re-learn. We can totally imagine the Gleeks trying to channel their inner rebels with the help of country's classic bad boys, and let's face it, they could use the lesson in cool. If you saw Walk the Line, you know that Johnny Cash was just as much of a showman as his pop-heavy counterparts, and that being an "outlaw" on stage is more about attitude than actual crimes. A Glee interpretation of "Ring of Fire" is both terrifying and titillating, and now we're just downright curious to see what they'd do with it.


Michael Jackson

Dare we dream to see a whole King of Pop episode? Yes, we dare! A Michael-themed episode in season 1 would have been "too soon" on all accounts, but we think they could handle it now. The ultimate pop icon would not only inspire amazing dance numbers, but so many of his hits would fit in perfectly with Glee themes: Artie trying to woo Tina? He'd totally serenade her with "P.Y.T." Rachel and Finn finally get it on? A duet to "The Way You Make Me Feel" would do nicely. New Directions' rivalry with Vocal Adrenaline ends up in an all-out brawl? Hello, "Beat It"!

Have your own Glee theme ideas for season 2? Let's hear 'em!