Semi Precious Weapons Tweet-N-Greet With Fans Before Lady Gaga Tour

One lucky fan, who traveled all the way from Australia, got two free tickets for their SPW devotion.

Lady Gaga Brings Contagious Energy To Staples Center

After a 72-hour bender of recording new songs, Gaga played the favorites at first of two L.A. shows.

Hard Rock Calling Festival Acts Weigh In On Best British Slang

Corinne Bailey Rae, the Hives and more count 'cheeky,' 'sort it out' and some naughty obscenities among fave Brit-isms.

Paul McCartney, Pearl Jam, Stevie Wonder Shine At Hard Rock Festival In London

Corinne Bailey Rae, Elvis Costello, Ben Harper also appear at three-day event.

Eminem Surprises E3 Crowd With Guests Travis Barker, Rihanna

Rapper headlined Activision concert that included Usher, Will.I.Am, Jane's Addiction and others.

Jack Johnson Previews New Songs From To the Sea At Free Concert

Johnson took the album title literally, performing for fans at Santa Monica's famed pier.

Justin Bieber, Usher Ignite Crowd At KIIS-FM's Wango Tango

Ludacris, Ke$ha, Adam Lambert also on festival bill.

Regina Spektor Tells Musical Stories At Sold-Out Sydney Opera House

'It's so amazing not to play by yourself,' she told her devoted Australian fans.

Linkin Park's Mike Shinoda Says Band Was Hands-On For '8-Bit' Game

'Linkin Park 8-Bit Rebellion!' hit iPhones, iPod Touches and iPads on Monday.

Matthew McConaughey Invites MTV News Into The Studio With Mishka

Reggae singer's second album with the actor-turned-producer, Talk About, hit iTunes on Tuesday.

311 Thrill Fans During Epic Five-Hour Set

Mellow rockers play to sold-out Las Vegas crowd on 311 Day.

311 Fans Get Hyped For '311 Day' Fan Party In Las Vegas

One fan threatened to quit his job in order to come.

Janet Jackson Trying 'New Things' On Next LP, Rodney Jerkins Says

'I'm still gonna keep the beats hard underneath 'cause she's still a dancer at heart,' producer says.

Justin Timberlake Puts Friends Taylor Swift, Alicia Keys To Work In Vegas

TLC, Snoop Dogg, Ciara, Jay Sean, Timbaland also rocked JT's all-star charity concert.

Paramore Kick Off Tour With A Bang -- Although Hayley Loses Voice Before Encore

Singer Hayley Williams' voice gives out during show in Pomona, California.

Our Night Out With Aubrey O'Day

The former Danity Kane singer invites MTV News to party at Sundance.

Ting Tings Make Everything Really Shiny For 'That's Not My Name' Video

Song is 'about feeling frustrated,' Katie White says.

DJ AM Welcomed Home By Hilary Duff, Will.I.Am And More At Hollywood Party

Proceeds from the event will benefit memorial funds for plane-crash victims.

Amy Winehouse Wins Over London Crowd With Two-Song Set At Nelson Mandela Concert

Embattled singer seems stable while performing 'Rehab,' 'Valerie' in Hyde Park.

Chicago Pop-Rockers Office Take Professional Approach To Having Fun

'Music is supposed to be sort of an escapism from the reality,' frontman Scott Masson says of band's easygoing attitude.

Paris Hilton Released From Jail

'This is by far the hardest thing I have ever done,' celeb says in statement.

White Stripes Give In-Store Performance — At Record Shop That Doesn't Really Exist

Jack Black gives surprise intro: 'Are you all ready for a rip-snorting humdinger?'

Maroon 5 Getting Love From Katharine McPhee, Lil Jon — And Even Lily Allen?

Band held It Won't Be Soon Before Long release party Tuesday night in West Hollywood, California.

Linkin Park, Korn Deliver Tomorrow's Hits Today At Weenie Roast Concert

Plus: Two-fifths of Incubus team up with a cappella group they found on YouTube.