1977–1979: Jazz-rock stars
The band's next album was 1977's acclaimed Heavy Weather, which proved to be the band's most successful recording in terms of sales, while still retaining wide critical acclaim. It included the band's biggest hit, the propulsive and danceable "Birdland" (highlighting Pastorius' singing bass lines and Zawinul's synthesized ensemble brass), which became a pop hit and later became a jazz standard. Weather Report appeared on the Burt Sugarman-produced series The Midnight Special, performing both "Birdland" and "Teen Town". Heavy Weather continued Weather Report's record of awards, including their last DownBeat Album of the Year award.
During this period, Pastorius' strong professional connection with Joni Mitchell (for whom he played bass throughout the latter half of the 1970s) led to another musical connection. Over the next few years, Mitchell hired the Weather Report line-up en masse (although without Zawinul in each case) to play on her studio albums Don Juan's Reckless Daughter (1977) and Mingus (1979).
During August 1978 the band joined Maurice White's vanity label ARC at Columbia. At the time they were once again without either a full-time drummer and percussionist, with Alex Acuña having returned to Las Vegas for a career as a studio musician and Manolo Badrena having been fired for "non-musical reasons". Shorter had been focusing most of his attention and compositional ideas into his solo work, while Zawinul was sketching out ideas for a solo album of his own, which involved moving away from a raw group sound in favor of constructing a far more orchestrated and experimental studio-based recording with multiple overdubs. However, Weather Report's contract and work schedule required another album, so Zawinul's solo work was absorbed into what became Weather Report's eighth album, Mr. Gone (1978).
The studio sessions made use of a variety of drummers – Pastorius played the kit on two tracks and further contributions came from Tony Williams, Steve Gadd, and Peter Erskine (the latter an ex-Stan Kenton/Maynard Ferguson drummer recruited to the project by Pastorius). Erskine became a full member of the band for the next tour and remained with Weather Report until 1982. The album also featured guest appearances from Deniece Williams and Earth Wind and Fire leader Maurice White. The album rose to No. 1 on the Billboard Jazz Albums chart.
Notoriously, Mr. Gone (1978) received only a one-star review rating from DownBeat after a string of group releases which had all pulled a five-star rating. The group arranged for a rebuttal interview with the magazine to defend their efforts. Zawinul and Pastorius were uncompromising in their contributions to the interview, Shorter more philosophical, and Erskine the most reticent of the four.
By the late '70s, Weather Report was a quartet of Zawinul, Shorter, Pastorius, and Erskine, and (for the first time) had dispensed with the auxiliary percussionist role, which had been integral since the band's inception. Instead, all four members doubled on percussion at various points in live performances. Zawinul commented that this sleeker, less crowded sound provided more listening range and made the music less chaotic now that the band were focusing more on melody and harmony.
The larger scale and multimedia staging of the band's tours (complete with stagehands, laser and film projections) began to take on the kind of rock-star proportions mostly unknown in jazz circles. The 1979 double live album 8:30 (which won that year's Best Jazz Fusion Performance) was recorded on the Mr. Gone tour and captured the direct power and energy of this lineup of Weather Report. Zawinul later described this lineup as "one of the greatest bands of all time! That band was a hummer!"
Between March 2 and 4, 1979, Weather Report traveled to Havana, Cuba, to participate in the historic Havana Jam festival, a break in mutual Cuban/American political hostilities, which had American artists such as Stephen Stills, the CBS Jazz All-Stars, Bonnie Bramlett, Kris Kristofferson, Rita Coolidge, and Billy Joel play alongside Cuban artists such as Irakere, Pacho Alonso, Tata Güines, and Orquesta Aragón. Another featured performance was by the Trio of Doom (a short-lived teaming of Pastorius with John McLaughlin and Tony Williams). Weather Report's performance featured in Havana Jam '79, Ernesto Juan Castellanos' documentary celebrating the event.
