Mariah Carey’s single “Touch My Body” made her way to the number one spot on the Billboard Hot 100 this week, giving the singer her 18th career chart topper and a spot behind the Beatles for the most No. 1s  in the rock era. Carey surpassed second place holder Elvis Presley, who had 17 Billboard No. 1s. Her new album “E=MC2″ will drop on April 15, which leaves her on track to surpass the Beatles’ record of 20 No. 1s before the CD runs its course. “Touch My Body’s” rise to the top is fueled by a record-setting debut week digital tally of 286,000 downloads. That sum, good enough for the No. 1 slot on Hot Digital Songs, surpasses the 277,000 downloads label mate Rihanna opened with in the June 9, 2007, issue with her summer hit “Umbrella.”  Meanwhile, Elvis will also be nudged from his standing as the artist with the most top 10s in the rock era, as Madonna surpasses him with her 37th top 10, “4 Minutes.” The Timbaland-produced track, which features Justin Timberlake, clocks a 68-3 jump on the Hot 100.