Justin Bieber gives a great live performance!
It's no wonder the girls love Justin Bieber!
Justin loves what he does.
He sounds so good!
Justin Bieber and Ellen battle it out.
Justin goofs around during a break.
Justin Bieber plays with Ellen's Hole-y Cow ball launcher from Walgreens.
Justin announces his acoustic album, to be released early next year!
Justin Bieber can wear these fancy overalls next time he meets the Prime Minister of Canada.
Justin performs a mashup of songs from his acoustic album.
Justin knows how to put on a show.
Justin Bieber serenades the audience.
He's one of the biggest teenage heartthrobs ever!
Justin Bieber gave an acoustic performance for Ellen's audience.
Justin Bieber moonwalks behind Ellen during her monologue!
Justin performs "Boyfriend" for Ellen's audience!
Justin and Ellen -- a match made in teen heartthrob heaven.
Justin Bieber announces his upcoming tour!
Justin Bieber and Ellen sport their matching jackets.
The audience goes crazy when Justin's here!
It's the prince and princess of pop music!
It's official! Ellen is Justin's girlfriend.
Justin gives Ellen a jacket that says "Girlfriend."
The one and only Justin Bieber is in the house.
Ellen, Justin Bieber, Justin's manager Scooter, his mom Pattie and friend Kenny pose after Justin's graduation.
Ellen gives a proper graduation ceremony for Justin Bieber.
Justin Bieber gives the world a 15-second preview of his upcoming single, "Boyfriend."
Justin Bieber and his new artist, Carly Rae Jepsen, talk to Ellen after Carly's performance.
Bieber and Ellen go head to head.
Ellen and Justin Bieber play ping pong before the show.
Justin Bieber has some birthday cake with Ellen, Megan Mullally, and his family.
Megan Mullally put together a special serenade for Justin Bieber on his 18th birthday.
It's an incredible new car!
Justin's manager, Scooter, has a big surprise for him!
Comedian Kevin Hart teases Justin about his lack of facial hair.
Justin Bieber's fan thinks she's in a dream.
Justin Bieber is here to celebrate his 18th birthday!
Justin Bieber has a huge surprise for everyone at Whitney Elementary!
Ellen and Justin Bieber say 'œHello!' to fans in the Riff Raff Room.
Ellen chats with Justin Bieber about his new album, 'œUnder the Mistletoe.'
Justin Bieber gives Ellen a lock of his hair -- as promised
Justin Bieber shows off his new hair
Usher surprises Justin Bieber by bringing out his birthday gift!
Justin Bieber shows off his Ellen underwear
One of Justin Bieber's biggest fans gets a surprise of a lifetime
Ellen tests Justin Bieber's many talents
Justin Bieber tells Ellen how he keeps his feet on the ground