The Irish model, who is married to Brian McFadden, cooed on Twitter: "Officially obsessed with @IGGYAZALEA Defo my new girl crush."
Vogue must have caught a glimpse of Iggy's seriously figure-hugging pink dress at the MTV Movie Awards this weekend.
Talk about jaw-dropping!
Aside from developing girl crushes, Vogue has been busy celebrating hubby Brian's birthday.
The former Westlife singer turned 34 on Saturday (12 April) and Vogue Tweeted: "Happy Birthday @BrianMcFadden."
Meanwhile, Brian's little sister Susan provided us with even more online entertainment.
The West End star Tweeted a throwback snap of her and Brian when they were little. Just look how cute they were....
Susan said: "Happy birthday to my lovely big bro @BrianMcFadden ...hope ur having the best day.. Miss you xx"
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