as a result of KCAL's operations being merged into KCBS-TV's Columbia Square facility, which KRTH had been operating out of. (They would again be split after the sale of the radio stations to Entercom in 2017.) Evolution to classic hits With its target demographics aging and ratings sagging, KRTH, along with most oldies outlets across the country, began adding 1970s songs to the playlist in the early 2000s, particularly disco. Artists such as Stevie Wonder, Elton John, ABBA, the Bee Gees, Earth, Wind & Fire, and Peter Frampton were combined with 1960s artists such as The Supremes and the Beatles. Though still repetitive, the playlist was also rotated more frequently, with a few rediscovered oldies brought "out of the vault" on occasion, while other songs were "rested" from the rotation. This process was taken a step further in 2007 with a few early 1980s songs added to the mix by artists such as Hall & Oates, Phil Collins, and Michael Jackson. By the end of 2007, K-Earth had improved its ratings substantially and was once again ranked among the top 10 stations in the Los Angeles market. More importantly from an advertising standpoint, the station was attracting a younger demographic. In November 2009, KRTH reached its first milestone by reaching their first #1 overall in the Arbitron 12+ Ratings; the station had never reached a #1 overall in its 37 years broadcasting as K-Earth. In 2010, K-Earth began adding songs from the mid- to late 1980s into its mix from artists such as Janet Jackson, The Bangles, Deniece Williams, and The Police. KRTH still played an occasional pre-1964 song such as "Shout", "Jailhouse Rock", or "Tequila" (about one every other hour). Another change that was made in the 2000s was the addition of adult contemporary Christmas music during the holiday season from performers such as Mannheim Steamroller, Air Supply, and Barry Manilow. Airing three times an hour, this holiday fare was designed to entice listeners away from AC competitor KOST, which annually shoots to #1 in the ratings with its all-Christmas format. (In years past, K-Earth played a similar amount of Christmas music, but only from oldies artists such as the Beach Boys or Alvin and the Chipmunks.) For several years, KRTH switched to all-Christmas music from 12:00 p.m. on Christmas Eve to 12:00 p.m. on Christmas Day. Following the departure of program director Jhani Kaye in 2013, a series