Over the course of her 11-year career, singer/songwriter Mariah Carey has scored seven No. 1 hits on the Billboard Hot Dance Music/Club Play chart. If beat-savvy remixers David Morales and MJ Cole have anything to do with it, Carey's new single "Loverboy" will be her next dance chart-topper. "Loverboy" is No. 44 on Billboard's Hot R&B/Hip-Hop Singles & Tracks chart in its third week.

On the "Loverboy" single, due July 17 from Virgin, Grammy Award winner Morales, who has frequently collaborated with Carey over the years, delivers three restructurings, each with its own distinct style and energy rush. The Club of Love mix finds the singer's vocals floating atop spacey effects, lush keyboards, and classic Morales kick. For a decidedly trippier journey, Morales has created the Dub Luv mix, while the Drums of Love mix resonates with a tribal vibe.

Cole's 2-step re-tweakings, titled Cole's Main and London Dub mixes, weave Carey's sweet, soulful wailings into a skittling, R&B-spackled landscape of hip-swiveling beats and rhythms. Cole's own album, "Sincere" (Island), was released in mid-April.

Meanwhile, Canada's Nettwerk label will issue singer/songwriter Sarah McLachlan's "Remixed" domestically on Tuesday (June 26), available as an import-only in the U.S. and internationally. The tracks on this set are "Fear" (Hybrid's Super Collider mix), "Sweet Surrender" (DJ Tiesto mix), "Angel" (Rollo mix), "I Love You" (BT mix), "Silence" (DJ Tiesto's In Search of Sunrise remix), "Black" (William Orbit mix), "Possession" (Rabbit in the Moon mix), "Hold On" (BT mix/edit), and "Plenty" (Fade mix). "Sweet Surrender" jumps 26-17 on the Hot Dance Music/Club Play chart this week.