Calvin Harris became one of EDM-pop's most successful architects with 18 Months, which fused the dance style's drops and fizzy highs with radio-friendly hooks. He doubles down on that approach on Motion, which features even more stylized songs and cameos from A-list singers. However, the album's finest moment belongs to Harris alone: on the former hit single "Summer," he uses EDM's dramatic peaks and valleys to convey the fleeting high of a summer fling, while the craggy warmth of his voice -- the last remnant of his more idiosyncratic electro-indie days -- adds some much-needed humanity and personality. Elsewhere, Motion lives and dies on the strength of Harris' collaborators. As on 18 Months, which was anchored by mega-hit partnerships with Rihanna ("We Found Love") and Ellie Goulding ("I Need Your Love"), many of this album's highlights feature female vocalists. Harris' reunion with Goulding, "Outside," doesn't quite recapture the magic of their previous work but does make the most of her deceptively powerful soprano, this time in a more upbeat setting. Likewise, "Pray to God" showcases HAIM's fetish for mainstream '80s sounds, channeling Stevie Nicks' "Edge of Seventeen" with its lavish harmonies, chugging guitars, and sizzling hi-hats, while "Together" dresses Gwen Stefani's playful, confident pop in EDM drag. A1 -Calvin Harris Faith A2 -Calvin Harris w/ Alesso Feat. Hurts Under Control A3 -Calvin Harris Feat. John Newman (5) Blame A4 -Calvin Harris Feat. All About She Love Now B1 -Calvin Harris Slow Acid B2 -Calvin Harris Feat. Ellie Goulding Outside B3 -Calvin Harris w/ Firebeatz It Was You B4 -Calvin Harris Summer C1 -Calvin Harris w/ Ummet Ozcan Overdrive C2 -Calvin Harris Feat. Hurts Ecstasy C3 -Calvin Harris Feat. Haim (2) Pray To God D1 -Calvin Harris Feat. Big Sean Open Wide D2 -Calvin Harris Feat. Gwen Stefani Together D3 -Calvin Harris w/ R3hab* Burnin D4 -Calvin Harris Feat. Tinashe (2) Dollar Signs