songs in my head

last time, when i juz download Linkin Park's songs. I'm kinda Linkin Park's fans. which is:
Numb
What I've done
In the end
Leave out all the rest

next day, the songs play by itselfs without thinking.

My bro normally buy DVD in privated stalls. he bought HSM3.
next day also, the songs stuck in my head again!!!
Night to remember
Can I have this dance
now or never

sometimes is annoying. sometimes, not all the time.

and now. after watching the phantom of the opera in school.
the songs stuck in my head also. u know that song
i think is "music of angel" and "the phantom of the opera"

tell you what.. is really really very weird!!!