2008

Jonas Brothers

June 20

The Bros 'Rock' Disney

The Jonas Brothers' Disney Channel movie, Camp Rock premieres with 8.9 million viewers tuning in, making it the most-watched cable program this year. In the TV movie, Kevin, 20, Joe, 18 and Nick, 15, star as teen pop stars sent to a rock camp, where Joe flips over Demi Lovato's poor-girl-with-a-booming-voice character.

Jonas Brothers

July

Kissing Selena Gomez!

Nick's ex-girlfriend Miley Cyrus goes public with their former romance, right when Nick moves on with fellow Disney star Selena Gomez. Although Jonas' rep denies a romance, the stars share similar first kiss stories in two different teen magazines. "Well, she's an amazing girl, and anybody would be lucky to be dating her," Nick says of Gomez, whom he dates until the New Year.

Jonas Brothers

August 07

JoBro Covers Rolling Stone

With their third album, A Little Bit Longer set to debut, the Jonas Brothers appear on their first Rolling Stone cover. The magazine says the brothers may share DNA, but are completely different, dubbing Kevin "the extrovert," Joe "the quieter Jonas, with a wild alter ego revealed onstage," and Nick the "Jonas Brothers' boss – the spokesman, the best musician, the chief songwriter." Upon its release, the album sells more than 525,000 copies to debut at No. 1 on the Billboard Top 200 album charts.

Jonas Brothers

August

Joe Dates Taylor Swift

Although country music star Taylor Swift, 18, says Joe, is just a friend, Joe fuels "Are they an item?" rumors when he turns up at her concert. Of Swift, Jonas says, "She’s a great girl...I think anybody would love to go on a date with her." And Swift says of Joe, "He's an amazing guy and anybody would be lucky to be dating him." In October, the couple calls it quits, and Swift writes a track, "Forever and Always," inspired by their breakup.

Jonas Brothers

November

Joe Bitten by 'Lovebug'

Wasting no time in moving on from ex-girlfriend Swift, Joe begins dating 10,000 B.C. star Camilla Belle, who stars in the Jonas Brothers music video, "Lovebug." The actress, who is three years older than Joe, is described as "a really good girl" with "a lot of the same characteristics and morals" as the middle JoBro. They split in July 2009.

2009

Jonas Brothers

February 08

'Burnin' Up' the Grammy Stage

Arguably the Grammy Awards' oddest performing pair, the Jonas Brothers & legend Stevie Wonder duet the pop trio's hit "Burnin' Up" and Wonder's classic "Superstition." Although the boys go home empty-handed (British singer Adele takes home the Best New Artist award), Nick predicted such a result prior to the ceremony. "We would love to win, [but] at the end of the day I think Adele is really amazing," he told PEOPLE. "I'd give her record of the year."

Jonas Brothers

June

Topping the Charts

In addition to starring as a fictional band of singing brothers in their Disney sitcom JONAS, the trio takes a more personal musical step with their new album Lines, Vines and Trying Times. The album debuts atop the Billboard 200 chart, selling 247,000 copies.

Jonas Brothers

June

Nick Reunites with Miley

Nick reunites with ex Miley Cyrus – who recently split with model Justin Gaston. "He's my best friend," Cyrus says, "and we still hang out all the time, and we've definitely reconnected." Days later, Joe confirms on national TV that his brother and the pop star are, in fact, back together.

Jonas Brothers

July 01

Kevin Gets Engaged!

Kevin, 21, surprises longtime girlfriend Danielle Deleasa, 22, with a cushion-cut diamond engagement ring. "She said yes, yes, yes like 500 times super fast in a row," the eldest Jonas brother tells PEOPLE. "Our hearts are filled with joy today," his parents say in a statement. "We hope we have raised Kevin to be a wonderful man and husband."

Photo Credits

BIOGRAPHY (top to bottom): Disney; Gilbert Flores/Celebrity Photo, Carlos Diaz/INF; Noah Fink/Startraks, Jeff Daly/Getty; David Aguilera/BuzzFoto/FilmMagic; Jeff Kravitz/FilmMagic; David Aguilera/FilmMagic; Courtesy Kevin Jonas

Edited by Janet Mock