Shaggy's gift for sparkling reggae-pop made him a ‘90s solo superstar, but his album cuts are a wellspring of teamwork. He embraces his roots as he hooks up with legends Toots & The Maytals on the summery “Bam Bam,” embraces electro-dancehall with Major Lazer on “Keep Cool,” and explores Colombian pop with Cali y El Dandee on the shimmering “Lumbra.”