Kanye West thinks he is ''the worst celebrity''.

The 'Stronger' hitmaker - who is expecting his first child with girlfriend Kim Kardashian - launched into a bizarre rap-rant during his performance at the Adult Swim Upfront party in New York on Wednesday (15.05.13), in which he insisted he is too ''real'' to be thought of as a fame seeker.

He said: ''One thing about me, I'm the worst kinda ... celebrity because all I do is make real music. All I do is sit in the studio and make real, real s***. And that's it.

''That's motherf***ing it. That's motherf***ing it. So I don't want nobody trying to run up on me with no cameras, trying to sell pictures and s**t to magazines, asking me no dumbass questions, throwing me off of my focus and s**t.

''Harassing you all motherf***ing day. I ain't no motherf***ing celebrity

''I ain't running for office. I ain't kissing nobody's motherf***ing babies. I drop your baby and you sue me and s**t.

''I'm trying to make some music that inspires people to be the best they can be. I don't want nobody to ask nothing else of me. Don't ask nothing else of me.

''Motherf***ers chasing you down, 'bout to make you crash and s***t and all they want is one n****r to laugh and s**t.''

Kanye - whose girlfriend tweeted from the audience to say he was ''killin' it'' on stage - will appear on topical comedy show 'Saturday Night Live' this weekend but went on to insist he won't be appearing in any of the programme's famous sketches.

He added: ''''Hell nah, I ain't doing no motherf***ing 'SNL' skits; this my goddamn life. This ain't no motherf***ing joke. That's it. Stop that s**t right there.''