17 Great Celebrity #TBT Photos You Should Definitely Check Out This Week

    A very early-'90s Will Smith photo kicks off this week's #ThrowbackThursday!

    1. Will Smith shared this photo of himself and Céline Dion hanging out backstage at the 1991 American Music Awards:

    2. Cher celebrated the 20th anniversary of her classic comeback song, "Believe," by posting this clip from the music video for it:

    3. Sarah Michelle Gellar shared this photo of herself hanging out with James Van Der Beek, Katie Holmes, Michelle Williams, and Joshua Jackson in the late '90s (and honestly it has me thinking about the Dawson's Creek and Buffy crossover that could have been):

    4. Snoop Dogg posted this behind-the-scenes photo of himself and Britney Spears on the set of her music video for "Outrageous," in 2004:

    5. Dolly Parton shared this photo of herself looking glam in the '80s:

    6. Robert Downey Jr. wished Iron Man director and friend Jon Favreau a happy birthday by posting this behind-the-scenes photo of the two of them on set of the film in 2007:

    7. In honor of his 34th birthday, Jeffrey Bowyer-Chapman posted this photo of himself in the early '90s:

    8. Rob Lowe shared this photo of himself from the early '80s:

    9. Christina Aguilera posted this photo from the Stripped album art, in celebration of the album's 16th anniversary:

    10. Reese Witherspoon celebrated the 20th anniversary of Pleasantville, by posting this photo from the film of herself and co-star Tobey Maguire:

    11. Ryan Reynolds celebrated his 42nd birthday by posting this photo of himself and his dad celebrating his bday in the '80s:

    12. Mandy Moore was obviously in a fall mood and shared these photos from when she appeared on the cover of Seventeen magazine in 2000:

    13. In honor of the 16th anniversary of her film, Frida, Salma Hayek posted this photo of herself dressed up as Frida Kahlo:

    14. Mike Tyson shared this photo of himself and the late Tupac Shakur hanging out in the '90s:

    My favorites, Tupac and Versace. #tbt #2pac #miketyson

    15. Jamie Lee Curtis celebrated the success of her new movie, Halloween, by posting this photo of herself in the original 1978 Halloween:

    16. Brie Larson shared this oh-so-'00s photo of herself:

    I USED TO LOVE THE MALL AND NOW I CANT BRING MYSELF TO BRUSH MY HAIR *~*LyFe Is A jOuRnEy*~* #tbt

    17. And finally, Britney Spears celebrated the 20th anniversary of her debut single, "...Baby One More Time," by sharing a clip from the ICONIC music video, along with a very sweet caption: