Their debut album, Cardiac Party, was produced by Glenn Frey of The Eagles on Irving Azoff's Full Moon Records/Warner Bros. label.

Before booking any gigs, the band rehearsed for several months, focusing on obscure soul tunes and a fast-paced show that featured their dancing 5-piece horn section, “The Heart Attack Horns.” Lee Thornburg and John (JB) Berry had played with Wayne Cochran & the CC Riders before moving to LA, and with them came the CC Rider dance steps and horn arrangements.

Jack Mack's fast-paced, highly polished, dynamic soul show with their dancing horns made Club Lingerie "the" place to be in LA on those Thursday nights.

After seeing the band at the Club Lingerie, Glenn brought the Heart Attack Horns into the studio to record on his first solo album, No Fun Aloud.

He became fond of the band and their sound; within weeks, they were signed to Full Moon/Warner Bros Records owned by Irving Azoff (manager of the Eagles) and Dan Fogelberg.

Combining soul and rock, the retro-style effort recalled the days when blue-eyed soulsters like Rare Earth, the Spencer Davis Group, the Rascals, and Blood, Sweat & Tears dominated the music world.

In the early morning of July 27, 1996, shortly after the band performed their original tune "I Walked Alone", a pipe bomb exploded in very close proximity to the stage, directly killing 1 person, and injuring 111.

The film, released by Warner Bros. Pictures on December 13, 2019, features actual video footage from Centennial Park in Atlanta in 1996 of Jack Mack performing two songs, "I Walked Alone" and "I'll Take You There.

In 2011 Jack Mack and The Heart Attack celebrated their 30th Anniversary by releasing Soul Meeting, featuring special guests vocalists Bill Champlin (Sons of Champlin, Chicago), Max Carl (38 Special, Grand Funk Railroad), Mike Finnigan (Crosby Stills & Nash, Bonnie Raitt, Taj Mahal), Tim Scott, Curtis Salgado (Multiple Soul Blues award winner), and the band's longtime lead vocalist, Mark Campbell.

The band was Mark Campbell, lead vocals; Andrew Kastner, guitars; Carlos Murguia, keyboards; Bruce Atkinson, bass; and Les Falconer, drums.