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Hollywood Stars Celebrate Pop Queen Britney Spears On Twitter As She Turns 36

It seems like just yesterday we were in awe of Britney Spears wearing denim from head to toe on the red carpet with Justin Timberlake. Oh, how time flies! That was all the way back in 2001. Now, 16 years later, Britney is celebrating another important life milestone: her 36th birthday! 

Celebrities from around the world are sounding off on Twitter with birthday cheer:

Over the years, Spears has inspired countless fans:

To some, she will always be the Queen of Pop:

And she's no stranger to a quality photo op:

Plenty of other celebrities look up to Spears:

Happy Birthday to the Queen! Long may she reign!

H/T - Twitter, Us