Backstreet Boys are heading for their first No. 1 album in 18 years on the Billboard 200 chart, as industry forecasters expect their new studio set, DNA, to bow atop next week’s tally. Those in the know suggest the effort could earn more than 200,000 equivalent album units in the U.S. in the week ending Jan. 31. DNA was released on Jan. 25 via the Boys’ K-BAHN label via RCA Records.