The second albums from Ciara and Gwen Stefani and an Eminem mix tape have claimed the top three slots on the nation’s album sales chart as 37 of the 44 returning albums in the top 50 registered sales gains.

No. 1 “Ciara: The Evolution” (LaFace/ZLG disc) sold 338,000 copies in the week ended Sunday, according to Nielsen SoundScan. Before the release of the disc, Ciara went on a 16-date tour that ended Sunday in Gotham with a perf shown on AOL.

“Eminem Presents: The Re-Up” (Shady/Aftermath/Interscope), with remixes and redos of songs by 50 Cent and Akon plus new tracks, debuted with a tally of 309,000 to start at No. 2.

No Doubt leader Stefani’s “The Sweet Escape” (Interscope) is high on the hill at No. 3, selling 243,000. Her 2004 solo debut reached No. 5 as its single, “Hollaback Girl,” became the biggest seller in the digital age.

The Stefani disc is driven by the first single, “Wind It Up,” which is based on the Rodgers & Hammerstein melody for “The Lonely Goatherd” from “The Sound of Music.” Stefani, who appeared on the American Music Awards two days before Thanksgiving, will embark on a 39-city North American tour in April, ending June 22 in her home of Orange County, Calif.

Last week’s No. 1, Incubus’ “Light Grenades” (Columbia), experienced the largest fall from the pole position in SoundScan’s 15-year history as it dropped to No. 37.

Among other debuts, the soundtrack to “Dreamgirls” (Columbia/ Sony Music Soundtrax), released nearly two weeks before the film, opened at No. 20 with 92,000 sold. Other debuts were Lil Scrappy’s “Bred 2 Die Born 2 Live” (Warners), which sold 82,000 to hit No. 24, and Brian McKnight’s “Ten” (Warners), which moved 63,000 to bow at No. 32.

Il Divo’s “Siempre” benefited from an “Oprah” rerun, seeing a 128% sales spike. The popera group’s disc rose 10 slots to No. 6 on sales of 166,000. Its self-titled debut tripled in sales to 30,000, rising to No. 66 from 130, and “Ancora” sold 21,000 to reach No. 87 from 161.