Maybe they'll have to start referring to Jessica as Ashlee Simpson's big sister. After all, Jessica's never had a No. 1 album, much less had one that held the top spot on the Billboard chart for three weeks, as Ashlee's ''Autobiography'' has. The disc saw a sales decline this week of just 8 percent and moves another 263,000 units, according to SoundScan. ''NOW That's What I Call Music! Vol. 16'' also stayed put at No. 2, selling another 247,000 copies.
The two albums held off challenges by three new releases that cracked the top five. Jailed rapper Shyne sold 158,000 copies of ''Godfather...Buried Alive'' to land at No. 3. Rappers Mobb Deep saw ''Amerikaz Nightmare'' debut in fourth place, selling 109,000 copies. Alter Bridge, the new band started by the ex-members of Creed (sans singer Scott Stapp), saw their ''One Day Remains'' enter the chart at No. 5, on sales of 95,000.
Holdovers included Usher's ''Confessions'' (down two spots to No. 6), Jimmy Buffett's ''License to Chill'' (sliding four slots to seventh place), Gretchen Wilson's ''Here for the Party'' (dropping three notches to No. 8), Prince's ''Musicology'' (slipping two spots to ninth place), and Avril Lavigne's ''Under My Skin'' (down four to No. 10).