Does this happen to you with iTunes?

I downloaded iTunes recently, but the song keep repeating, say im listening to Tik Tok, the lyric would go like "Don't stop make make it pop" See the repeat? Some songs do it, that I downloaded free, but also songs that I rip from cd's do it too! Is this normal? Does it happen to you too? Oh and say you would download the songs onto your iPod Touch, will it show up like this? Thanks!