8 of The Best Celebrity #TBT Instagram Posts

Whoever thought of #TBT, I tip my hat to you, never undone no matter what the social media network.

When you dress as the yellow teletubby for Halloween, but it’s before Teletubbies got huge so all the kids at school ask you why you’re dressed as a yellow pregnant alien.

A photo posted by Taylor Swift (@taylorswift) on Oct 28, 2015 at 3:09pm PDT

Throwing it way back with this! Thank you for all the love, I am so blown away. X #TBT

A photo posted by @adele on Oct 29, 2015 at 5:42am PDT

#tbt dressing as myself

A photo posted by @amyschumer on Oct 29, 2015 at 5:46am PDT

#TBT By the time I was 16 yrs old, I had already enrolled in four high schools across the country due to being evicted and lil’ trouble with the law.. McKinley HS (Honolulu, HI), Glencliff HS (Nashville, TN), McGavock HS (Nashville, TN), Freedom HS (Bethlehem, PA). I was also 6’4 225lbs, rockin’ a dead caterpillar on my lip (aka the porn ‘stache) and all the kids in every high school thought I was an undercover cop cause I looked like a mutated, yet handsome SOB of a man child. Plus in Nashville I was already hangin’ out in honey tonk dive bars on Music Row and hustlin’ cars from crackheads. Yup, one of the many reasons why I’m a grateful man for the life I have today and also grateful I straight up kicked puberty’s ass early in life. #GodBlessSamoanAndBlackGenetics #AndGodBlessOurTeenageYears #AndWTFWasIThinkingWithThisMustache

A photo posted by therock (@therock) on Aug 6, 2015 at 12:24pm PDT

I was all smiles because I got to go to school and be myself. #62MillionGirls don’t have that chance. Let’s end that. 62milliongirls.com

A photo posted by Mindy Kaling (@mindykaling) on Sep 27, 2015 at 2:13pm PDT

#tbt When you’re 13… hanging with your first crush and you’re trying to play it cool. #wheresmydeodorant

A photo posted by Nick Jonas (@nickjonas) on Nov 12, 2015 at 9:40pm PST

#tbt 2002 Mohawk by @donnie68b I had this haircut for a blast round France solo on my old trusty Suzuki Bandit 1200 #happydays Can’t remember what I’d done to my forehead but you should have seen the other guy!

A photo posted by Ewan Mcgregor (@mcgregor_ewan) on Oct 22, 2015 at 1:44pm PDT

Rehearsing the finale of my 6th grade production of “Guys and Dolls”. Playing Adelaide was the highlight of my life at that point and solidified the goal and dream of singing/acting professionally. Sweet memories. Shout out to our bad-ass music teacher Mr. Nelson! #TBT #abushelandapeck

A photo posted by Mandy Moore (@mandymooremm) on Jan 29, 2015 at 10:23am PST