Three new albums take the top spots on the Billboard album chart this week. The rock band 3 Doors Down is at No. 1 with 154,000 sales of its self-titled new album on Universal, Nielsen SoundScan reported. Bun B of the long-running Texas rap duo UGK is No. 2 with his second solo record, “II Trill” (Rap-A-Lot/Asylum), with 98,000. (Bun B’s partner in UGK, Pimp C, died in December.) Third place goes to Julianne Hough, a 19-year-old country singer and “Dancing With the Stars” alumna; her self-titled debut on Mercury Nashville sold 67,000 copies. Last week’s No. 1, Death Cab for Cutie’s “Narrow Stairs” (Atlantic), slipped to No. 5 with 53,000 sales. Down the chart, Donna Summer’s first CD of new material in 17 years, “Crayons” (Burgundy), opened at No. 17 with 23,000.