Justin Bieber

Best photos, gifs, moments and funny memories of Jimmy Fallon dancing with celebrities on his 39th birthday.

Here are some of the most radical celebrity makeovers/makeunders we've ever seen... for better or for worse!

Take a peek at our Best Celeb Instagram Pics of the Week below to see what Drake, Jennifer Lawrence, Justin Bieber, Ashley Tisdale and more fabulous stars were up to this week!

Can you match the tattoo with the celebrity it belongs to? See a gallery of tats and test your knowledge.

See what Ashton Kutcher, Khloe Kardashian, Justin Bieber and more of your favorite stars were posting on Instagram this week.

See what Justin Bieber, Carrie Underwood, Andy Cohen, Mindy Kaling and more were up to in our Best Celebrity Instagrams of the Week.

Photos of Austin Mahone and Justin Bieber on Instagram shirtless, on stage, with Selena Gomez, and similarities between two teen pop artists.

Timeline list of Miley Cyrus songs, music collaborations with artists on Disney Channel, Hannah Montana, rappers on Bangerz.

See what Justin Timberlake, Katy Perry, Justin Bieber and more of your favorite stars were up to in today's OK! Quick Pics.

See photos of Justin Bieber cheering up young victims of Typhoon Haiyan in the Philippines this week.

Photos of celebrities on the purple carpet at the premiere of Justin Bieber's Believe movie at Regal LA Live like Kylie Jenner, Debby Ryan, Casper Smart.

We take a look back at some of the most memorable Justin Bieber moments of 2013 in photos.

When it comes right down to it, however, his actions are not all that different from any other kid his age.

After appearing in court (and getting charged with DUI, drag racing, resisting arrest) Justin Bieber greets the waiting paps as he hops into waiting SUV

You get tired sometimes. Celebrities, well, they get exhausted and go to the hospital. Check out celebs who have sought treatment!

How much life can you live in 15 years? See which celebrities wrote memoirs as teens.

Male celebrities like Jake Pavelka and Justin Bieber reveal what is attractive in a woman, how to get a famous guy to like you and date you.

A source tells OK! that someone on Justin Bieber’s staff is trying to sell a tell-about the troubled singer.

Justin Bieber gets detained at LAX airport for questioning after returning from Japan, where there was controversy.

New TV episodes like American idol season 13 top ten performs, Justin Bieber the Fabulous Life, series premiere of The 100 on CW.

Watch the Justin Bieber deposition video and Juan Pablo Chris Harrison After the Final Rose awkward interview and vote in the poll.

Justin Bieber and Selena Gomez fueled their romantic reunion rumors when the Biebs posted two intimate Instagram videos of the pair.

[caption id="attachment_1000926464" align="aligncenter" width="600"] Fame[/caption] Finally—some positive Justin Bieber news! OK! News: About a Boy's David

Justin Bieber's legal troubles have only just begun. But is he headed for deportation, rehab, or jail?

Justin Bieber faced an assault charge in Toronto, then came home and posted a brand-new music video. Why not?

Selena Gomez rumored to be dating Austin Mahone. See all the famous guys Selena Gomez has dated, ex boyfriends Nick Jonas, Justin Bieber.

He just posted a pic on his Instagram account in which he compares himself to another tortured pop star.

Pattie Mallette responds after Justin Bieber arrested in Miami, discusses advice she gave her son on relationships and love life.

Justin Bieber goes to court after getting arrested in Miami and is represented by lawyer Lea Black's husband Roy Black from Real Housewives.

Justin Bieber mug shot after getting arrested in Miami for drag racing, driving with expired license and DUI and resisting arrest.

See interviews from the hottest guys on late night talk shows this week including Mark Wahlberg, Matthew McConaughey, Joel McHale and more.

Celebrity Instagram photos from the weekend like Justin Bieber Selena Gomez back together, Lea Michele bikini, Carlos Pena married in Cabo.

Justin Bieber and Selena Gomez possibly back together, teen couple reunited on segways near Justin's home in Calabasas on January 2.

From Zac Efron in rehab to Khloe Kardashian and Lamar Odom's divorce, find out the 8 biggest celebrity scandals of 2013.

Hear the songs that did not get nearly enough appreciation in 2013 including Katy Perry, Justin Timberlake, Drake and Miley Cyrus.

Vote in poll for best new music releases Christmas week like Pia Mia The Gift EP, Justin Bieber Journals, Mike Posner ft. Big Sean video.

Photos of Justin Bieber at the LA premiere of Believe movie directed by Jon Chu at Regal LA Live on December 18, 2013.

[caption id="attachment_1000915694" align="aligncenter" width="600"] Getty Images[/caption] Justin Bieber's red carpet appearance at the Believe world premiere

Watch a live stream video of celebrities on the red carpet at Regal LA Live for Justin Bieber Believe movie premiere on December 18, 2013.

Vote in poll for best celebrity accounts and photos from 2013 from Rihanna, Justin Bieber, Kim Kardashian, Chrissy Teigen, Kylie Jenner.

Win a trip to meet Justin Bieber with 4 friends in LA to see the Believe movie and meet Bieber from new iPhone app, CelebCalls.

Find Out How You Can Win A Chance To Meet Justin Bieber By Donating To His Prizeo.com Typhoon Haiyan Relief Campaign.

What do you look for in a successful holiday song? Maybe it's a fresh cover on a classic, or one that you loved when you were a kid, or maybe you want some

Vote in poll for best new pop song of the week like Justin Bieber All That Matters, Kelly Clarkson and Leona Lewis Christmas song.

Bing just released its list of the most searched celebrities of 2013. Any guesses on numero uno?

See what One Direction, Julia Louis-Dreyfus and all your favorite stars were talking about on Twitter in today's Tweet Repeat.

Full trailer for Justin Bieber Believe concert 3d documentary movie from Open Road films released December 25, Christmas 2013.

Miley Cyrus spoofs Justin Bieber sleeping in a Brazilian brothel video clip with Tati Neves while at a radio station CapitalFM in the UK.

Justin Bieber invests $1 million in new app designed for taking selfies, picture sof yourself called Shots of Me.

Vote in poll for best new pop song music from Mariah Carey, Future Miley Cyrus music video, Justin Bieber All Bad, Bruno Mars Gorilla remix.