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Frank Sinatra Jr. Makes Cameo Appearance on "The Defenders"

In this file photo, Frank Sinatra Jr., performs Sept.12, 2006, in Beverly Hills, Calif. (Photo by Frederick M. Brown/GettyImages).

NEW YORK (CBS) Frank Sinatra Jr. made a brief cameo as himself Wednesday night on the premiere episode of "The Defenders," the new CBS legal show.

The 66-year-old singer-actor, who bears a resemblance to his famous father, has done similar guest appearances in the past, most notably on "The Family Guy" and "The Sopranos," the Emmy-winning HBO crime-family hit.

Sinatra seemed a particularly apropos choice for a show like "The Defenders" which aims for a Vegas Rat Pack vibe.

Sinatra';s early career as a singer-songwriter kept him om the road working with luminaries like Duke Ellington. But he put his career on hold in the late 1980s to serve as his father's musical director and conductor.

His latest album was the 2006 release "That Face!"

The New Jersey-born Sinatra made headlines as a child when he was kidnapped and released after two days when his family paid a ransom.