After a whirlwind courtship that began at September's Video Music Awards, [article id="1629130"]Katy Perry and Russell Brand confirmed their engagement[/article] on Wednesday. They shot a film together, traveled the world and haven't been shy about discussing their relationship in the media. In less than four months, they've gone from dating to engaged. And, in case you missed any of their relationship milestones, MTV News has rounded up a timeline of when and how the pair took their relationship to the next level.

In the late summer, Brand was shooting his upcoming flick, [article id="1612079"]"Get Him to the Greek."[/article] The film includes a number of cameos from music superstars, including Pink and Diddy, and he also gets to share a kiss with Perry in the flick. After kissing him, Perry told the February issue of Glamour magazine, she felt something for her future fiancé.

"When he was filming 'Get Him to the Greek,' I did a cameo with him," she said. "My scene called for me to make out with him. And on the way down the stairs after the scene, I was hopping like a bunny. I hop like a bunny when I'm happy -- I get a bit childlike."

Next up, the pair would reunite in New York at the VMAs, where Brand was hosting. It wasn't the first time the pair had graced the VMA stage on the same night. Both had attended the 2008 show, but in 2009 Perry would pay tribute to the night's host with Aerosmith's Joe Perry by her side. She sang the Queen anthem "We Will Rock You," bowing down to the night's host. Later on in the night, he would make public his intentions for the singer, telling the crowd, "Katy Perry didn't win an award and she's staying at the same hotel as me, so she's gonna need a shoulder to cry on. So in a way, I'm the real winner tonight."

Soon after the VMAs, Brand and Perry were inseparable. If they weren't together, they were tweeting to and about each other. Soon, they were reportedly on vacation in Thailand and were spotted in London. They seemed to really make their relationship public when they hit up Paris fashion week in October, where they were spotted at shows together.

Also in October, [article id="1624683"]Perry celebrated her birthday[/article] with her friend Taylor Swift and, of course, Brand. She later tweeted about the party: "I'm SO happy!!!! I am just giggling at random. ... I think this is how it will be for a while."

[article id="1625385"]Brand sat down[/article] with London's Sunday Times in November, calling his sweetheart "lovely" and saying he was looking forward to monogamy now that he's given up his addictions to sex and drugs. "I am living in a different way at the moment, regardless of what happens in my current situation," he said. "I am unlikely to be satisfied with the calamitous promiscuity of the preceding five or six years."

Days later, Perry hosted the [article id="1625663"]MTV Europe Music Awards[/article] and paid homage to her beau wearing his nickname, "Rusty," on the seat of her knickers and a very sexy little outfit showing pride for West Ham United, Brand's favorite soccer team. "Wow. Now MY GIRLFRIEND has worn a West Ham basque while hosting the EMA's. What a day!" he tweeted. "I might revive Gandhi and ask if he wants to be mates."

In the weeks leading up to their engagement, Perry introduced Brand to her parents while in Austria, and he even discussed wanting to get married and have kids in a "GMTV" interview. "It was a deep craving within me -- I mistook it for lust," he said. "I thought I was promiscuous, but it turns out I was just thorough to get the right one. I'm ever so happy."

The two celebrated the new year while on vacation in India, where he popped the question. He then reportedly texted his friends to confirm the news, saying, "It's True. Much love."

In the February Glamour issue, Perry, whose parents were preachers before she became a pop star, explained why she fell in love with Brand, who at one time admitted to being a sex addict, and noted that she may have found her match in the once-wild funnyman.

"A vocabulary! He could slay anybody with the things that he says. He doesn't even need his fists," she said of her favorite Brand qualities, adding, "When I find a partner who is my teammate. I'm not going to play by any rules, I'm just going to go with my heart. Why wait? I just wrote a song [that goes], 'They say it's hard to meet your match/ Gotta find my other half so we can make a perfect shape.' "