An initiative to encourage healthy teen relationships says songs by Jamie Foxx and Lady Gaga are the musical equivalent of junk food.

A teen panel working with the Boston Public Health Commission says Foxx's "Blame It" and Lady Gaga's "Bad Romance" and "Paparazzi" are among the top 10 with "unhealthy relationship ingredients."

The commission yesterday released its list based on a "nutrition label" rating popular songs on healthy relationship themes.

Mario's "Break Up" topped the list of the most unhealthy relationship songs of 2009. Among the panel's top 10 songs with healthy themes: "Miss Independent" by Ne-Yo and "Meet Me Halfway" by the Black Eyed Peas.

'IDOL' TO PREMIERE ON 2 NIGHTS IN JANUARY

"American Idol" will kick off its ninth year with a two-night season premiere in January.

Fox announced yesterday that the hit singing contest will return Jan. 12 and 13. This year's big change: Paula Abdul is out as judge and Ellen DeGeneres is in.

SPURLOCK TO COLLABORATE ON 'SIMPSONS'

"The Simpsons" is going to wrap up its 20th anniversary year of celebration with the help of filmmaker Morgan Spurlock.

Fox announced yesterday that Spurlock will present the hourlong special "The Simpsons 20th Anniversary Special: in 3-D! on Ice" on Jan. 10. The animated television show debuted on Fox in 1989.

That night, the series will air its 450th episode, "Once Upon a Time in Springfield," with guest star Anne Hathaway. Spurlock is best known for his documentary, "Super Size Me."

GIBSON'S LAST DAY AS ANCHOR DEC. 18

ABC says Charles Gibson will sign off from the "World News" anchor desk on Dec. 18.

The 66-year-old Gibson, who announced his retirement in September, has been at ABC News for more than three decades and plans to continue as an occasional contributor.

He will be replaced by "Good Morning America" co-host Diane Sawyer. Gibson has anchored "World News" since 2006, and was a co-host of "Good Morning America" for much of the 20 years before that.

AFRICA TRIP INSPIRES KEYS CONTEST

Alicia Keys says her first visit to Africa was so emotional and inspiring that she is ready to take others there to experience something similar.

The singer is launching a contest through her charity, Keep a Child Alive, that will give five people an opportunity to visit the continent with her. She says her initial trip to Africa "totally changed my life."

Fans can enter the contest at savethechild.org or by texting "Alive" to 90999. The fee for the text is $5, to be donated to Keep a Child Alive.