Justin Bieber took an unexpected trip before heading back to Europe tonight.

The 19-year-old, who’s scheduled to resume his Believe tour tomorrow in Munich, briefly visited ex-girlfriend Selena Gomez’s house on the way to the airport this afternoon.

A source exclusively tells E! News that Bieber arrived at Gomez’s Encino, Calif., home at around 3:30 p.m. and stayed for just over an hour.

The beleaguered pop star, bodyguard in tow, was driven through the front gates in a bus-type vehicle.

Shortly after Bieber left, Gomez was seen driving away from the house as well.

Her ex is due to fly out from LAX tonight, but we’re told he was driven back to his own home in Calabasas directly after leaving Gomez.

Hey, the kid’s had a lot on his mind—maybe he forgot his passport!

“@DJTayJames: Sooo @justinbieber has a library in his room lol” 

“@AlfredoFlores: why so sleepy?”

Justin will be on Jimmy Fallon on 2/5

Justin’s collaboration with Drake “Right Here”,  is going to be released to the Top 40 Rhythmic Radio on February 5, 2013 

Believe Acoustic is now on itunes! Buy it here!

1. Boyfriend
2. As Long As You Love Me 
3. Beauty And A Beat 
4. She Don’t Like The Lights 
5. Take You 
6. Be Alright 
7. All Around The World 
8. Fall 
9. Yellow Raincoat 
10. I Would
11. Nothing Like Us 

 In his fourth cover story for Billboard, Bieber opens about:

• What a fifth No. 1 album would mean to him

• A look at the chart milestones “Acoustic” might reach

• How he really feels about being snubbed by the Grammys

• Heartbreak: “I’m not in the happiest place that I’ve ever been”

• Plans for his next album and whether he wants to do more acting

… And a whole lot more.

1. Boyfriend

2. As long as you love me

3. Beauty and a Beat

4. She don’t like the lights

5. Take you

6. Be alright

7. All around the world 

8. ?

In just a few years, he’s become the biggest pop sensation on Earth! JUSTIN BIEBER has grown up in front of our eyes, and on Ellen’s stage! He made his television debut on Ellen, he celebrated his 18th birthday and his graduation — all on her show. Today, the teen megastar returns to catch up with Ellen on his incredible life, his girlfriend, Selena Gomez, and his exciting new book, “Just Getting Started”!

As quickly as Selena Gomez blocked Justin Bieber from her life via her telephone and whatnot, they hooked up again … capping off a 24-hour rendezvous at a swanky Beverly Hills hotel. 

TMZ has learned … Bieber had a driver take him to LAX Wednesday night, where they picked up Selena … and rolled over to her home. We’re told Bieber spent the night at SG’s place. 

The next morning, the two hitched a ride to the Four Seasons Hotel in Beverly Hills … but entered the building at separate times, presumably so no one would snap a shot of them together.  

As we previously reported, Selena had been dead set on cutting JB out of her life, even blocking him on her cellphone  … but you know young love — predictably unpredictable.

Justin Bieber chats with Kris Kringle, star of the 1947 Twentieth Century Fox film classic “Miracle on 34th Street” in Macy’s star-studded take on Kringle’s return to modern day Macy’s Herald Square in the Holiday TV spot - Another Miracle on 34th Street.

Justin Bieber, Usher and Ke$ha will perform at the 40th annual American Music Awards on Sunday, Nov. 18, joining previously announced acts Pink, Taylor Swift, Nicki Minaj, Christina Aguilera, Carrie Underwood, Pitbull and Linkin Park. More artists are expected to join the lineup in the coming weeks.

VOTE FOR JUSTIN :

» Artist of the Year

» Favorite Male Artist—Pop/Rock

» Favorite Album—Pop/Rock

@BBCR1: “That’s right - on Monday morning @justinbieber will be checking in with @grimmers - make sure you’re listening”

Justin Honors Halo award winner (Kylie):

Kylie Lan Tumiatti developed a passion for giving back to the community early on, after watching her younger sister struggle with learning English. Tumiatti decided to help others who faced similar obstacles and partnered with Operation Hope Florida, a non-profit facility that provides prekindergarten classes to children of migrant workers. Together they implemented a literacy program that enhances the language skills of young children while simultaneously instilling a love of stories and books.

The award ceremony will be taped live from the Hollywood Palladium in Los Angeles, on Saturday, November 17th and premiere Monday, November 19th @ 8PM ET/PT on Nick at Nite.