Janet Jackson spends a fifth week atop Adult R&B; Songs (dated Oct. 3) with “No Sleeep,” featuring J. Cole, matching her longest reign (and only other No. 1), achieved when “I Get Lonely” led the chart for five consecutive weeks in 1998. Jackson has posted a total of 27 entries since the chart launched in 1993, including 11 top 10s. “No Sleeep” remains at No. 1 despite a five percent decline in spins during the tracking week ending Sept. 20, according to Nielsen Music.