Watching Lady Gaga perform at the VMA's 2009. I remember the goosebumps I got when the fake blood started coming out and you could hear all the gasps in the audiance. It was truly an amazing performance.

BEYONCÉ drop. I'll never forget that moment. It was crazy and so exciting. What an event.

probably the announcement for the S&M remix

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although i was really hype for the Hold It Against Me and Telephone music videos.

oh or when ke$ha announced We R Who We R / gaga announced Bad Romance.

The Born This Way Era

Probably when Janet announced her comeback

This is kinda random but Taylor's Welcome to New York performance on Good Morning America during 1989 release week was really euphoric. It was such an exciting week and the album sounded amazing and was proving all the haters wrong. For me, that final "welcome to new york" and her smile and the crowd cheering and all the emotions was just a magical moment

1 Fearless wins AOTY
2 Taylor gets third million selling week

When I heard MJ was going to do a comeback tour...

Agree with the OP. It was pretty cool checking iTunes at 9pm like I ordinarily do and seeing the Bey take-over. I bought the album immediately.

BEYONCÉ

That release was the closest thing I've experienced to feeling like a kid on Christmas morning again in my adult life. That was so amazing.

Almost all of the responses are things that were so recent... Did you guys not pay attention to music before this decade?

I'm not sure about mine. Probably the Madonna/Britney kiss.
But if we're talking strictly music, maybe when Britney came out with ITZ. Hearing Toxic & Breathe on Me for the first time.

I also got really excited to hear Kelly's Miss Independent after stanning for her on American Idol.

Hearing Rated R for the first time.

Katy's superbowl!

Seeing Diana Ross in concert.

Before then music wasn't really exciting for me to be honest. In my childhood though, watching Thriller and other MJ videos were exciting.

When Ariana was releasing her second single "Baby I" from her debut. It was so much fun watching her radio interviews all night until she finally released the song. The song shot up on iTunes faster than we expected and the jealous Victoria Justice stans on Twitter were trying to come for Ari. Idk, it was my first experience hardcore stanning.

When Bangerz came out.

baby i was such an event for me too