Breaking up is not hard to do at a Neil Sedaka concert. When the singer, dressed in a sequin-studded white outfit, stepped in front of his translucent baby grand piano and began kicking his heels high while singing "Calendar Girl," the effort of suppressing a laugh could have made your eyes bulge.

That scene, however, was just a momentary lapse in an otherwise enjoybale, if hardly exciting, concert at Wolf Trap last night. Sedaka has been writing pop songs for 30 years, and even his severest critics can't help but be impressed with his countless song credits and his soothing tenor, which remains remarkably agile.

His success in recent years has certainly brought a glitzy Vegan veneer to his concerts, but he still delivers almost every song earnestly, as if unveiling it for the first time.

Supported by a young trio and a backup vocalist, Sedaka retraced steps from his early days in New York writing for other singers, to his first hit song, "Oh Carol," to his colaboration with Elton John, to his latest album. Even his most disposable lyrics were partially salvaged by simple melodic hooks, and his more substantial songs like "The Immigrant" readily reveal how much he's learned over the years.