Carrie Underwood is on track to achieve her second No. 1 album on the Billboard 200 as her just-released “Play On” should debut atop the chart next week. Music industry prognosticators suggest the 19/Arista Nashville set could sell over 300,000 copies by week’s end on Sunday Nov- 8 night. Underwood’s last effort, 2007′s “Carnival Ride,” opened in the penthouse with 527,000 and has gone on to sell 2.98 million in the U.S. according to Nielsen SoundScan. The new album’s lead single, “Cowboy Casanova,” moves up two slots to No. 3 on the Hot Country Songs tally and has so far peaked at No. 11 on the Billboard Hot 100 chart. “Play On” will lead a cavalcade of new albums in the top 20 of the Billboard 200 next week, with the soundtrack to Fox TV’s “Glee” likely as the next-best debut. The Fox/Columbia album may sell over 100,000 copies in its first week. Weezer’s “Raditude,” the new “Now 32″ compilation, Andrea Bocelli’s “My Christmas” and Foo Fighters’ “Greatest Hits” are all on course to make lofty chart entries as well. Nielsen SoundScan’s sales tracking week, as reflected in Billboard’s sales charts, runs from Monday through Sunday of each week. Next week’s album charts will be revealed on Wednesday, Nov. 11 and will reflect data through the week ending Sunday, Nov. 8.