On this page you will find the I Need To Know ringtone in several versions, all free to download. Original song by Marc Anthony. You can choose from 7 versions between 16 and 108 seconds. More ringtones in the same style are under the tags piano, harpsichord and midtempo. Two formats are available: .MP3 for Android and other phones and .M4R for iPhone. All ringtones by Marc Anthony are collected on the artist page.