We all humans age with time but this is not the case with these forever young celebrities. These celebrities always seem to look the same even after decades. Their appearances have pretty much stayed the same after many years.
Eternal youth is a mystery in Hollywood which is yet to solve. We want answers that how have these celebrities still managed to look so young and why us the regular people have not known the secret of eternal youth. Here are our then and now photos of 20 forever young celebrities.
Will Smith Then And Now (2003 vs 2019)
Will Smith’s youthful glow isn’t the only mystery surrounding this celebrity. On your left, you’ll see a picture of Will Smith in 2003 at the world premiere of ‘Bad Boys II,’ while on the right you’ll see Will Smith at Kids' Choice Awards 2019.

Gwen Stefani Then And Now (2001 vs 2019)
The next celebrity on our list of forever young celebrities is Gwen Stefani. Her picture on the left was from the 2001 Teen Choice Awards and the picture on the right is at at the ACM Awards 2019.

Angelina Jolie Then And Now (2001 vs 2019)
Jolie is at the 2001 Golden Globes party in the left photo and on the right is Angelina at the Oscars 2019 looking absolutely stunning in a black dress and bold lip.

Avril Lavigne Then And Now (2007 vs 2018)
Avril can be seen in 2007 in the left picture while on the right photo Avril Lavinge looks beautiful in 2018.

Jennifer Lopez Then And Now (1998 vs 2018)
Our list of forever young celebrities cannot be completed without eternal young Jennifer Lopez. She is a celebrity who defy her real age by decades. On the left is Lopez in Versace back in 1998, while on the right is Lopez at the 2018 Time 100 Gala. That’s 20 years between the two photos and we cannot understand what's the magic behind her eternal youth.

Nicole Kidman Then And Now (2000 vs 2018)
On the left, you can see the Nicole Kidman in Christian Dior at the Academy Awards in 2000 while on the right is Nicole Kidman 18 years later, at the 2018 90th Annual Academy Awards. She looking absolutely stunning in both photos and one cannot tell which one is older.

Kerry Washington Then And now (2004 vs 2018)
On the left, Keyy Washington can be seen back in 2004 while in the right photo he can be seen in 2018.

Reese Witherspoon Then And Now (2001 vs 2018)
Reese Witherspoon looks identical in both photos. On the left is Witherspoon at the 2001 Teen Choice Awards and on the right, she is at the 2018 Annual Critics’ Choice Awards. She looks as fabulous as 17 years earlier.

Sandra Bullock Then And Now (2003 vs 2018)
On the left is Bullock at the 2003 BAFTA awards, while on the right she is at the 2018 BAFTA’s and still looking fabulous 15 years later.

Jake Gyllenhaal Then And Now (2004 vs 2017)
Jake Gyllenhaal can be seen in 2004 vs in 2017 at Cannes.

Lucy Liu Then And Now (2004 vs 2016)
On the left, Lucy Liu is winning a 2004 MTV Movie Award and on the right is Lucy at the world premiere of Kung Fu Panda 3 in 2016.

Jared Leto Then And Now (2006 vs 2017)
On the left is 2006 Jared Leto looking moody in all black. On the right is Leto 11 years later at the 2017 LACMA Art + Film Gala. Btw he’s 48 now in 2019 and still kills it.

Jessica Alba Then And Now (2002 vs 2017)
On the left, Jessica Alba is at the VH-1 BigAwards in 2002 while on the right she is at the 2017 Vanity Fair Oscar Party.

Rihanna Then And Now (2005 vs 2017)
The next celebrity on our list of forever young celebrities is Rihanna. On the left, Rihanna is back in 2005 and on the right, she is attending the 3rd annual Diamond Ball in September 2017.

Julia Roberts Then And Now (2004 vs 2016)
On the left is Roberts at the 76th Annual Academy Awards back in 2004 and on the right is she 12 years later, at the 69th Festival de Cannes in 2016.

Elijah Wood Then And Now (1997 vs 2016)
On the left is Elijah in 1997 and on the right, he is in 2016 after 19 years. He is looking young and almost same after 19 years.

Mila Kunis Then And Now (2001 vs 2017)
The left picture shows the gorgeous and beautiful Mila Kunis back in 2001, and the right picture shows her in 2017. She is stunning like always.

Jamie Foxx Then And Now (2005 vs 2017)
On the left, Jamie Foxx in 2005 and on the right he is in 2017 looking almost the same after 12 years.

Jennifer Aniston Then And Now (2002 vs 2017)
On the left, Jennifer Aniston is holding an Emmy for Best Actress in a Comedy Series in 2002. On the right, she can be seen at the Hollywood Walk of Fame Star Ceremony in 2017.

Also Read: Behind the Glam: Celebrities Without Makeup, and They're Still Gorgeous
Paul Rudd Then And Now (2003 vs 2016)
On the left, Paul Rudd is in the year 2003, and on the right, he is in the year 2016.
