Dr. John makes ‘NCIS: New Orleans’ guest appearance Tuesday _lowres

CBS photo by SKIP BOLEN -- 'NCIS: New Orleans' cast members gather around Grammy Award-winning artist Dr. John, front center, who's guest-starring on Tuesday's season premiere. From left, are Daryl 'Chill' Mitchell, Rob Kerkovich, Zoe McLellan, Scott Bakula, CCH Pounder, Lucas Black and Shalita Grant.

Dr. John will make a guest appearance in Tuesday night’s second-season premiere of “NCIS: New Orleans.”

Averaging more than 15 million viewers per week, “NCIS: New Orleans” is broadcast television’s most successful drama in a decade. The series airs at 8 p.m. Tuesday on WWL, Channel 4 (cable Channel 3).

As Dr. John previously did for a guest appearance on HBO’s “Treme,” he plays himself in “NCIS: New Orleans.”

“That’s the easiest thing to do,” the six-time Grammy winner said of his latest acting role.

On the “NCIS: New Orleans” set in August, Dr. John especially enjoyed working with Daryl “Chill” Mitchell, the series regular who plays Investigative Computer Specialist Patton Plame. Mitchell gave the singer-pianist some acting suggestions.

“Whatever he said made good sense to me,” Dr. John said. “He told me some clues like, ‘Maybe you can try to tune the piano.’ ”

Series star Scott Bakula promoted the “NCIS: New Orleans” premiere Monday on “CBS This Morning.” Bakula mentioned Dr. John’s appearance as well as his own delight about filming the series in New Orleans.

“To be in the place where jazz was born and be around that environment is breathtaking to me all the time,” Bakula said.

The “NCIS: New Orleans” writers have worked places into the series where Bakula, a singer and pianist in real life, will play some piano. This season will also see Bakula’s Senior Special Agent Dwayne Pride buy a bar.

“My character will buy a rundown bar that we’ll start refurbishing,” the actor said. “So that’s potentially going to be a place to do more music. I’m excited about that.”

On the “NCIS: New Orleans” set, Bakula played piano for Rock and Roll Hall of Fame inductee Dr. John.

“He can play some piano,” Dr. John confirmed.

“NCIS: New Orleans” has invited him to do more work for the series, added Dr. John, whose latest album is “Ske-Dat-De-Dat: The Spirit Of Satch,” a tribute to Louis Armstrong.