Katy Perry And Russell Brand Added To Ongoing List Of Celebrity Couples On The Engagement Fast Track

As we learned yesterday, Katy Perry is in fact engaged to bad-boy British actor-comedian Russell Brand after only three months of dating. Russell popped the question while the two vacationed in India (a Christmas gift to Katy from her Rusty), and his quickie proposal got us thinking about other celebs who put an engagement ring on it after less than four (!!) months of dating. Some are successes, some are major failures, so only time will tell which category Katy and Russell (Kussell? Raty?) will fit under.

1. Khloe Kardashian and Lamar Odom

Keeping up with the Kardashians' romantic entanglements is nearly a full-time job. After only a month of dating, sister Khloe and L.A. Laker star Lamar Odom not only announced their engagement, but held a quick (yet very lavish) wedding 9 days later.

2. Mariah Carey and Nick Cannon

Mariah and Nick played coy when rumors of their relationship began swirling in 2008, so it's a bit hard to pinpoint just how long the two dated before becoming engaged. Suffice it to say, they were fast fiances. The musical duo took their secrecy to the altar, tying the knot on a Bahamian beach mere weeks after Mariah was spotted sporting some serious bling on her left hand.

3. Tom Cruise and Katie Holmes

What would Dawson say? After just two months of dating and a now-infamous couch hop), "Top Gun" Tom popped the question to Katie atop the Eiffel Tower in Paris. One star-studded Italian wedding and a Suri later, the couple seem to be going strong.

4. Britney Spears and Kevin Federline

It took only three "Chaotic" months of dating for Brit-Brit and K-Fed to decide to make it legal. The pair were married for two years before declaring their love "Toxic" and parting ways.

5. Kate Walsh and Alex Young

"Private Practice" star Kate Walsh told People magazine back in 2007 that she was "literally living the dream" when she becoming engaged to her "ridiculously handsome" boyfriend Alex Young after three months of dating. Too bad the relationship turned into a bit of a nightmare when their marriage dissolved a little more than a year later. '

Did we leave anyone off our list? Let us know in the comments section below!