--From Top 40 to Your Phone
Pop stars from Britney Spears to Tim McGraw are cashing in on ring-tone royalties. The most popular phone tune at the moment: rapper 50 Cent's In Da Club.
--You Heard It on Television
Also hot: themes for TV shows, from ER to American Idol. MIDIringtones even carries tones from Fox News Channel. That's Bill O'Reilly on the line.
--No. 1 with A Bullet
In Britain, Music Week publishes a Billboard-style chart of ring-tone best sellers there. Top of the chart on the first biweekly list: Eamon's F___ It (I Don't Want You Back).
--Personal Hits
For those avoiding prefab tunes, there's Xingtone, a $15 software program that lets users record unique ringer sounds, from a child's song to a dog's bark.
--Lords of the Rings
German electro-punk act Super Smart (the panda heads are for anonymity) has released an album of ring-tone-only tunes, Panda Babies.