But concerts like Ms. Abdul's aren't primarily vocal showcases.

And the late Donny Hathaway's "Someday We'll All Be Free" became an extended vocal showcase for her backup singers.

And in her new show, her unadorned versions of "The Man I Love," "The Nearness of You" and other ballads are splendid vocal showcases.

For many singers, including Melissa Manchester, Linda Ronstadt and K. D. Lang, it provided a blueprint for stylistically adventurous vocal showcases.

The song's dramatic, theatrical style and range was a vocal showcase, and it was not uncommon for talent show contestants, such as those on Star Search, to tackle "Solitaire".

As Knowles was performing a New Edition-inspired choreography and sang the song's modulations in an extended vocal showcase the crowd sang along with her.

"Relative Harmony" is above all a robust vocal showcase for the Chicago-born sisters, both of whom have grown in strength and confidence in the last nine years.

He commended the multiple genre changes during the 90-minute performance, as well as Fanning's vocal showcase.

This sister act, both of whose stars have Broadway credentials, is a robust, mostly upbeat vocal showcase that shows how much they have grown since teaming up nine years ago in a similar show, "Sibling Revelry."

Where ordinary pop voices deliver "readings" of lyrics that bring out a song's literary qualities, a great pop voice turns every song into a vocal showcase.