I just recently found Iza Trapani books and they are a huge hit in this house. My kids love Sing Along books. Iza Trapani takes common kids songs and then makes up several new verses, usually about going on adventures and what not, then she illustrates them beautifully, binds them as a board book, and Wah-La, instant hit!
So far we have only read I'm a Little Tea Pot and Twinkle, Twinkle Little Star. Miss J had me read the Tea Pot book over and over again, and as soon as I opened up Twinkle, Twinkle Little Star she got this huge smile on her face that was plastered there the whole book.
There are lots of titles to choose from so check her out!