Kim Kardashian went ALL out for boyfriend Kanye West's 35th birthday and bought a $750,000 Aventador LP 700-4 Lamborghini for the rapper, even though he was in Ireland on tour and unable to receive it in person.

West Tweeted yesterday: "Thanks to all my fans. I am tweeting under the stage while Jay is rapping in Dublin on my birthday. You guys make all my dreams possible."

Seems Kim has a calming effect on the notoriously anxious artist. Kanye's Twitter rants are well-known but his relationship with Kim and perhaps his uber-successful Throne tour with Jay-Z, have toned him down.

And even though Kim couldn't present the car in person, she still hoofed it to Ireland to give Kanye a different type of birthday present ...

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