sing the praises of
US /sɪŋ ðə ˈpreɪzɪz əv/
UK /sɪŋ ðə ˈpreɪzɪz əv/

1.
to express enthusiastic approval or admiration for someone or something
:
•
She always sings the praises of her new car.
•
The critics sang the praises of the new play.
to express enthusiastic approval or admiration for someone or something