I have noticed that KPWR hasn't been playing as much Lady Gaga, Katy Perry, and Black Eyed Peas as usual. Katy Perry's song E.T. did not make it very far on Power 106, even with the Kanye feature. Had this been last year, this song would be in power rotation. Also, Power has ignored all of Lady Gaga's and Ke$ha songs, and the electro-pop has been kept in really low rotation so far this year. In combination with what you said BJordan, it does look like their going back to their hip-hop lean. Now why? I don't know, but maybe the electro-pop craze is dying down on rhythmic radio?
I looked at the history of the Rhythmic Top 40 number 1 hits from the 1990's to Early 2000's and all the stuff on the charts were dominated by R&B/Hip Hop product. For example Usher's smash hit Nice & Slow became a huge staple on KPWR during the course of 1997-98 and Usher has been getting mad spins on Power 106 for years. They can easily go back to urban. IMHO
KPWR has been play pop hop/R&B for years. They played LL Cool J, Quad City DJ's and Timbaland,etc in the 90's and Early 2000's so with that said they've been playing "pop" for years. Another example Shade Sheist hits Money Owners w/Timbaland & Wake Up w/Nate Dogg from 2002. Those were in "Power Rotation" at KPWR in 2002. WQHT Hot 97 in NY is still Hip Hop & R&B also they both are urban contemporary but billed Rhythmic.