List of nicknames used on 글리 (Source: 글리 Wiki, some from memory). A few have been left out so if 당신 can think of any just post in comments)
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RACHEL
Rach, A-Rach, Babe, (Finn)
Miss Bossy Pants, Eva Peron (Mercedes)
RuPaul, Man Hands, Treasure Trail, Stubbles, That Thing, Sweetie (Quinn)
Yentl (Dakota, Santana)
Boy Hips (Lauren)
Benedict Arnold (Kurt)
Dwarf, Midget, Hobbit (Santana)
Barbra Streisand (Suzy Pepper)
Lady, Michele (Sue)
Baby, My Hot Little Jewish American Princess (Puck)
The Jew (YouTube user)

FINN
Finnocence (Santana)
Frankenteen (Santana, Dakota Stanley, Sue)
Sugar 레이 (Sue)
T-Rex...

Actual Solos:

Season 1: True Colors

Season 2: I Follow Rivers

Season 3: Because 당신 Loved Me

Season 4: Gangman Style, I Don't Know How to 사랑 Him,
Hung Up

Duets:

Season 2: Sing!, Dog Days Are Over

Season 3: L-O-V-E, Flashdance... What a Feeling


Solos in a Group:

Season 1: Push It, Proud Mary, My Life Would Suck Without You, Express Yourself, Bad Romance, Give Up the Funk, To Sir With Love

Season 2: Toxic, One of Us, Time Warp, Start Me Up/Livin on a Prayer, Marry You, The Most Wonderful 일 of the Year, We Need a Little Christmas, God Rest Ye Merry Gentlemen, Deck the Rooftop, Born This Way, Pure Imagination,...

All of these are in my own opinion. The 기사 is not about the actual quality of the songs, but 더 많이 of their use in the show. A short note is included after the 제목 to note the main issue(s). "Done intentionally" means that the faults were acknowledged in the show.
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1.    Cell Block Tango - Poor song choice and offensive; done intentionally. The girls just found out that someone is in an abusive relationship. This was probably one of the worst songs they could have chosen to sing. As said in the show, it was 의해 a bunch of violent, crazy women who killed their significant...