Kanye West had one heck of a birthday week.
And the hot car carried quite the hefty price tag.
The 31-year-old E! reality star forked over big bucks for her boyfriend's brand spanking new $750,000 Lamborghini, a source confirms to E! News.
Kim's BFF Jonathan Cheban couldn't help but comment on the Keeping Up With the Kardashian star's splurge, tweeting, "Can't wait for my birthday!," retweeting a story about the car while he was at it.
Meanwhile, Kim continued to help Kanye celebrate his 35th birthday Friday, showing up for the Dublin, Ireland leg of Kanye's "Watch the Throne" tour with Jay-Z.
"Hi Dublin, Ireland!!!," Kim tweeted Friday.
—Reporting by Marcus Mulick