Diana Ross. Blue Hills Bank Pavilion. July 27, 2017

Diana Ross, both with the Supremes and without, supplied a soundtrack for a generation, and those Baby Boomers showed their appreciation with unbridled enthusiasm on Thursday night when she held court at the Blue Hills Bank Pavillion. She's been pop music royalty for decades and at 73 remains a poised, charismatic performer with at distinctive, honeyed voice that has lost little of its lustre.

Over her 70-minute set, Ross gave those fans exactly what they want -- a seemingly endless medley of her many hits coupled with four, or maybe five, costume changes. That virtually all of the songs were written before 1980 points to how enduring the music of Motown is and the place that Ross played in it. Even my companion, who only knew Ms. Ross as the mother of Tracee Ellis Ross, acknowledged he knew nearly all of her songs, likely through a kind-of cultural osmosis. And the interplay between her breezy delivery and the audience's response was quite electric.

Still it would have been welcome for her to have her sing something outside her comfort zone. Isn't there a Gershwin song she's dying to sing? What keeps her set from being too one-note is the jazz-tinged arrangements of her hits performed by a first-rate six-member ensemble and three back-up singers.

Then there are the costumes, which ranged from a blood-orange gown with ample frills to a purple-sequined number offset with a blazing yellow cape, that looked like variations of what she had worn five decades ago with The Supremes. That she wears them so well and looks, well, so spectacular only adds to her legendary status.

The concert was also something of a family affair as it opened with a short set by her daughter Rhonda, an engaging singer stuck with the difficult task of singing while a good deal of the crowd was moving to their seats. She came out again to join her mother in an encore of "I Will Survive." Diana Ross doesn't just survive, she endures.

For more on Diana Ross, including her upcoming performances, visit her Facebook page.