A victory both you and your mother can agree on: Barbra Streisand’s duet-packed album Partners (John Legend! Babyface! Billy Joel!) will hit No. 1 on the Billboard “200” next week, placing Chris Brown’s X right below her at No. 2. Babs has got the No. 1 album thing on lock: This will be her tenth, with one in each of the last six decades.