The Song is Hot n Cold, sung by Katy Perry .
Here is the link to the song : http://www.youtube.com/watch?v=kTHNpusq654
The Lyrics : http://www.metrolyrics.com/hot-n-cold-lyrics-katy-perry.html
The type of Similes, Metaphors, e.g. in the Song :
~[You change your mind]Like a girl changes clothes .
~[Just like twins], so in sync .
~Now's a Dead battery. [No more energy]
~Stuck on a Roller Coaster, can't get off this ride . [You can't change your mind anymore]
~You're Hot then you're cold, You're Yes then you're No . [Alliteration]
~You're in then you're out, you're Up then you're out . [Alliteration]