Diane Warren's songbook defined the sound of adult contemporary and adult-oriented R&B of the late 1980s and the '90s. Warren's success extended well into the 2020s when she launched her own performing career with Diane Warren: The Cave Sessions, Vol. 1, a 2021 record that arrived nearly 40 years after Laura Branigan brought the songwriter's "Solitaire" into the Top Ten in 1982. It was the 1985 DeBarge smash "The Rhythm of the Night" that established Warren as a powerhouse songwriter, while Starship's 1987 number one "Nothing's Gonna Stop Us Now" gave her the first of 13 Acade...