'Idol' odds 'n ends: Kat nabs a role on 'CSI: NY'

The following are Idol-related odds and ends that happened this week:

>It was announced Wednesday that Katharine McPhee would be the latest Idol alum to have a guest role on a CBS show, following in the footsteps of Mikalah Gordon and Chris Daughtry. Kat will play none other than a singer on an episode of CSI: NY, which is slated to air sometime in April.

>30-second clips of all the songs on Kelly Clarkson's latest album All I Ever Wanted were today made available on iTunes. Shortly thereafter, the album leaked in full.

>Clay Aiken has been ousted from his record label of four years. According to Billboard, RCA and Clay quietly parted ways a few months ago, but nothing had been made public until today. RCA has now dropped every Idol runner-up it has signed since the show began.

>The full schedule for Jennifer Hudson's tour, which she is co-headlining with Robin Thicke, was revealed this week. The tour will visit 19 U.S. cities between March 31 and May 8, beginning in Albany, N.Y. and finishing in Houston, Tex.

>Ruben Studdard seems to be in a bit of trouble with the tax brigade. According to The Detroit News, Ruben currently owes $254,119 in federal taxes. Maybe sales from his new single "Together" and his upcoming album Love IS will help offset these accumulated no-nos?