FRANK IS PUT ON THE SPOT WHEN A SUPPORTER FOR THE MAYOR ELECT IS FOUND DEAD, AND JAMIE GOES ON HIS FIRST UNDERCOVER ASSIGNMENT, ON A REBROADCAST OF "BLUE BLOODS," FRIDAY, DEC. 9

Multiple Grammy Award Winners Tony Bennett and Carrie Underwood Guest Star as Themselves Tony Award Nominee Kelli O'Hara Guest Stars as Lisa, Erin's Close Friend

Cassidy Gifford (Daughter of Kathie Lee Gifford) Guest Stars as Mandy, a Girl at the Bar

"Mercy" - When a supporter for the mayor-elect is found dead, Frank is put on the spot when the mayor wants him to position it to the public as a random act of violence. Meanwhile, Jamie goes undercover at a bar and meets a suspicious patron, on a rebroadcast of BLUE BLOODS, Friday, Dec. 9 (10:00-11:00 PM, ET/PT) on the CBS Television Network. (Originally broadcast 9/23/11.)

Tony Bennett and Carrie Underwood guest star as themselves and perform at the mayor-elect's fundraiser. Tony Award nominee Kelli O'Hara guest stars as Lisa, Erin's close friend. Cassidy Gifford (daughter of Kathie Lee Gifford) guest stars as Mandy, a girl at the bar.

SERIES REGULARS:

Tom Selleck (Frank Reagan)
Donnie Wahlberg (Danny Reagan)
Bridget Moynahan (Erin Reagan-Boyle)
Will Estes (Jamie Reagan)
Len Cariou (Henry Reagan)
Jennifer Esposito (Jackie Curatola)
Amy Carlson (Linda Reagan)
Sami Gayle (Nicky Reagan-Boyle)

RECURRING CAST:

Tony Terraciano (Jack Reagan)
Andrew Terraciano (Sean Reagan)
Nick Turturro (Sgt. Anthony Renzulli)
Abigail Hawk (Baker)
David Ramsey (Mayor Carter Poole)
Eric Morris (Noble Sanfino)

GUEST CAST:

Tony Bennett (Himself)
Carrie Underwood (Herself)
Kelli O'Hara (Lisa)
Bob Gaynor (Cole)
Valentina de Angelis (Nikolina)
Steve Cirbus (Kiril)
Billy Griffith (Darrell)
Grant Rosenmeyer (Brian)
Katie Henney (Kate)
Cassidy Gifford (Mandy)
Happy Anderson (Bartender)
Edward Furs (Super)
Kurt McKinney (Agent Stark)
Andhy Mendez (Billy Atwater)
James Hosey (Boy)
Susana Perez (Hooker)
Marvina Vinique (Barbara Stroman)

WRITTEN BY: Kevin Wade

DIRECTOR: Michael Pressman

RATING: TBD