High Quality Content by WIKIPEDIA articles! "I Think I`m in Love with You" is a song written and produced by Cory Rooney and Dan Shea for Jessica Simpson`s debut album Sweet Kisses (1999). It contains a sample of singer-songwriter John Mellencamp`s "Jack and Diane" (1982) and was released as the album`s third and final single in summer 2000 (see 2000 in music). The song`s protagonist declares "Boy I think that I`m in love with you, got me doin` silly things when it comes to you". The single peaked at number ten on Australia and top-twenty on Canada, UK and New Zealand. In United States reached at number twenty-one.