^maybe she did alot of sit up!
and i hope she will sing somoe ballad with a dress like in is it you? PV
to cover her tummy
hopefully she will sing ballads insread of pop songs
so you, by myself, kokoro no tabibito etc
edit: i dont know if you had watched this or not, she's singing by myself and TK is playing his guitar and sing for the BG vocal!
http://www.youtube.com/watch?v=NN-MSipX4cE&NR=1