"Aneurysm" is a song written by Nirvana. The song is notable in that it was written by all three members of Nirvana, in contrast to the majority of the group's songs which were written by frontman Kurt Cobain. A 2000 poll from BBC Radio 1 saw it voted as the third best Nirvana song, behind "Smells Like Teen Spirit" and "Heart-Shaped Box".
Tobi Vail made Kurt Cobain so nervous that the first time he spent an evening with her he felt physically sick. The experience formed the backbone of Aneurysm. .