Avril Lavigne engaged to Nickelback frontman Chad Kroeger

It's a match made in Canadian music heaven as Avril Lavigne and Nickelback frontman Chad Kroeger announce their engagement. The Canadian musicians have been quietly dating for six months. Initially the pair were work colleagues, as Chad and Avril began collaborating on a track for the songstress's upcoming fifth album in February. 

The couple's relationship quickly escalated from friendship to love. "A romantic relationship blossomed as they spent time writing together," a source told People magazine. Chad, 37, apparently presented Avril, 27, with a 14-carat diamond ring when he proposed. According to insiders, the couple couldn't be more thrilled. "He makes her so happy," a source close to the family revealed. "Both of their families could not be more excited."

Chad has never been married before but this will be the second time Avril has walked down the aisle. Avril and her husband of three years - Sum 41 musician Deryck Whibley - divorced in 2009. Avril has most recently dated Brody Jenner but their relationship ended earlier this year. 

Avril Lavigne, David Guetta and Demi Lovato Rock Y100's Jingle Ball 2011

While New York hosted Z100's Jingle Ball at its famed venue, Madison Square Garden on December 9, Florida was made merry with a similar holiday gig by Y100 on the next day. Avril Lavigne was one of the performers, and David Guetta as well as Demi Lovato, fresh off their headlining bill at the Big Apple concert, flew to the state to help spread the Christmas cheers.

Rocker chick Avril rocked a black cropped top, a pair of skinny leather pants as well as black-and-red heeled boots. Performing songs including the ones from her latest studio installment "Goodbye Lullaby", the girlfriend of Brody Jenner showed off acrobatic stage act at one point during the December 10 concert.

French disc jokey David kept the party going from behind his turntable by spinning a bunch of electro/dance beats. Lovato, meanwhile, alternated her set between pumping up the crowd with uplifting songs and slowed it down with the ballad melody of "Skyscraper". During one of her high-energy sets, she's accompanied by astronaut-helmed dancers.

Off stage, Lovato talked about her duet with Kelly Clarkson at the Z100 concert. To JustJared, she gushed, "She actually was backstage and she was like 'we should sing a duet together' and I was like 'of course, anything you want.' And then we basically came up with the idea to sing a Christmas carol together and it came in place yesterday. It was amazing, I was so excited."

The star-studded annual event took place at the Bank Atlantic Center in Sunrise. The other musical guests at the Saturday night festive event included Flo Rida, Cobra Starship, Gym Class Heroes, Neon Hitch and Karmin.

Avril Lavigne books 'America's Got Talent' -- EXCLUSIVE

To help kick off its run of live shows, America’s Got Talent will feature a performance by Avril Lavigne during Wednesday’s telecast.

Lavigne will perform “What the Hell” and “Smile” during the live results show that begins at 9 ET on NBC. It will also feature a performance from the Broadway musical “Priscilla Queen of the Desert.”

AGT’s first live performance show will air Tuesday and feature 12 of the top 48 contestants. They are Anna Graceman, Dezmond Meeks, Duo Aero, Echo of Animal Gardens, Fearless Flores Family, J Chris Newberg, Miami All-Stars, Sandou Trio Russian Bar, Snap Boogie, Squonk Opera, The Fiddleheads and Those Funny Little People.

Eight acts will be eliminated on Wednesday.

Avril Lavigne Takes Abbey Dawn To Berlin

Stepping out to promote her clothing line, Avril Lavigne was spotted leaving Ritz Carlton Hotel in Berlin, Germany earlier today (July 6).

The 26-year-old pop/rock songstress kept it casual for her mid-week meetings, dressing in a black cut-off t-shirt, black leggings, and a pair of running shoes.

After what appears to be a super-successful workday, the fashion designer took to Twitter to reveal some exciting news, writing, "Great day at Bread and Butter in Berlin. Abbey Dawn signed new stores in Spain, Portugal, Ireland, France, Poland, Germany. So cool :) xo"

Lavigne, who is looking to expand her line to footwear and denim in the future, recently told press, "Our main goal right now is to make our clothes available to fans all over the world. When I see girls wearing Abbey Dawn, it's awesome."