I can think of a few off the Top of my head:

- DEMI's HDD articles vs. Pentatonix
- Britney's Blackout Vs. The Eagles Walmart-Only Release
- BEYONCE the surprise album (+ Amazon deciding to sell the album months later after trying to pull a boss move with Target)
- The Release (and subsequent drop) of Not Myself Tonight and Bionic
- The Elevator Incident
- Drake's surprise mixtape
- The "Hello" Adele Commercial

Potential Threads:
- Justin Bieber Vs. 1D
- Zayn Leaving the group

I've been here for a few years, and found other threads online as a guest in the past, so I know there must be many more.
Any suggestions?

http://atrl.net/forums/search.php?searchid=10061658

All of these

Applause vs. Roar
ARTPOP HDD thread

* Two More*

ARTPOP release Vs. PRISM / Roar Vs. Applause
Bad Blood
KanyeGate

Oh I thought you were going to talk about stuff that's mostly relevant only on ATRL.

Like, Lucia Cole.
Natalie Kills getting fired.

Or even things that are just atrl threads, like
Messiest you've ever sucked?

Wow. ATRL gets wild sometimes, but that is just too much info for a thread title. LOL.
I was just thinking music and media related.

The nails one.

credit card girl.

Also, it was closed prematurely but one of my personal faves is the one about Taylor being a lesbian where all her fans threw her under the bus

And the Leona "neigh" thread

Anything Azealia says is CRAZY for the first two-seven pages.

The ARTPOP HDD thread remains the most iconic thread on here.

Solange beats up JayZ

Halsey threads are all iconic tbh. we hate her so much.

Probably Britney Jean debuting at #37 in the UK. The Army/Fighter rivalry is one that will never die.

Credit Card girl is undeniably #1

The Beyonce one where her and Jay-Z buys the Games of thrones eggs and chair, I think?