Kim Kardashian's Vogue Cover: She Is "Over the Moon," Source Says

Photographed by Annie Leibovitz

Kim Kardashian's dream of landing on the cover of Vogue is finally a reality.

'She's thrilled about it-completely over the moon,' a source close to the 33-year-old reveals to E! News about her beautiful cover and spread with fiancé Kanye West. 'For her, this is a dream come true.'

As for those who are unhappy with the Kimye cover- ahem Sarah Michelle Gellar-Kim 'doesn't spend time worrying about the haters.'

'She's not stressing about the backlash, she honestly doesn't pay attention to stuff like that,' the source says.

PHOTOS: Seth Rogen and James Franco spoof Kimye's Vogue cover

Nobody knew that the A-listers was appearing in the fashion magazine and the Keeping Up With the Kardashians star 'kept this really close to the vest.'

'She didn't tell anyone it was coming,' the source adds. 'Everyone found out with the rest of the world. But everyone's really excited for her.'

The superstar couple happily tweeted after the fashion magazine unveiled their cover, Kim excitedly said it was a 'dream come true,' while Kanye simply stated 'TRILL, Thank you @voguemagazine.'

The April issue featuring North West's mom and dad hits stands March 31 and is available on March 24 as a digital download.

PHOTOS: More celeb couples on magazine covers