Background: Charles Parker Jr. (August 29, 1920 - March 12, 1955), also known as Yardbird and Bird, was an American jazz saxophonist and composer. Parker was a highly influential jazz soloist and a leading figure in the development of bebop, a form of jazz characterized by fast tempos, virtuosic technique and advanced harmonies. Parker was a blazingly fast virtuoso, and he introduced revolutionary harmonic ideas including rapid passing chords, new variants of altered chords, and chord substitutions. His tone ranged from clean and penetrating to sweet and somber.
Context: Parker's life was riddled with depression and heroin addiction. This addiction caused him to miss performances and be considered unemployable. He frequently resorted to busking, receiving loans from fellow musicians and admirers, and pawning his saxophones for drug money. Heroin use was rampant in the jazz scene, and users could acquire it with little difficulty.  Although he produced many brilliant recordings during this period, Parker's behavior became increasingly erratic. Heroin was difficult to obtain once he moved to California, where the drug was less abundant, so he used alcohol as a substitute. A recording for the Dial label from July 29, 1946, provides evidence of his condition. Before this session, Parker drank a quart of whiskey. According to the liner notes of Charlie Parker on Dial Volume 1, Parker missed most of the first two bars of his first chorus on the track, "Max Making Wax". When he finally did come in, he swayed wildly and once spun all the way around, away from his microphone. On the next tune, "Lover Man", producer Ross Russell physically supported Parker. On "Bebop" (the final track Parker recorded that evening) he begins a solo with a solid first eight bars; on his second eight bars, however, he begins to struggle, and a desperate Howard McGhee, the trumpeter on this session, shouts, "Blow!" at him. Charles Mingus considered this version of "Lover Man" to be among Parker's greatest recordings, despite its flaws. Nevertheless, Parker hated the recording and never forgave Ross Russell for releasing it. He re-recorded the tune in 1951 for Verve.  Parker's life took a turn for the worst when his 2 year old daughter tragically passed away from pneumonia. He attempted suicide twice in 1954, which landed him in a mental hospital.  When Parker received his discharge from the hospital, he was clean and healthy. Before leaving California, he recorded "Relaxin' at Camarillo" in reference to his hospital stay. He returned to New York, resumed his addiction to heroin and recorded dozens of sides for the Savoy and Dial labels, which remain some of the high points of his recorded output. Many of these were with his so-called "classic quintet" including Davis and Roach.
Question: How long was he using drugs
Answer: He returned to New York, resumed his addiction to heroin and recorded dozens of sides for the Savoy and Dial labels,

Problem: Background: Chicago is an American rock band formed in 1967 in Chicago, Illinois as The Chicago Transit Authority before shortening the name in 1970. The self-described "rock and roll band with horns" began as a politically charged, sometimes experimental, rock band and later moved to a predominantly softer sound, generating several hit ballads. The group had a steady stream of hits throughout the 1970s and 1980s. Since at least 2008, Billboard has shown Chicago to be the "greatest of all time" American band in singles chart success, and since 2015, the "greatest of all time" American band in album chart success as well.
Context: Concurrently with Chicago's existing career, lead vocalist Peter Cetera had begun a solo career. He proposed an arrangement with the band where they would take hiatuses after tours to let him focus on solo work (mirroring that of Phil Collins and Genesis), but the band declined. Cetera ultimately left Chicago in the summer of 1985. He soon topped the charts with "Glory of Love" (the theme song of the film The Karate Kid Part II), and with "The Next Time I Fall" (a duet with Amy Grant). Two more songs reached the Top Ten: a 1988 solo hit called "One Good Woman" (No. 4 U.S.), and a 1989 duet with Cher called "After All" (No. 6 U.S.). In 1992, Cetera released his fourth studio album, World Falling Down, which earned him three hits on the Adult Contemporary charts, including the single "Restless Heart". Cetera's former position was filled by bassist and singer-songwriter Jason Scheff, son of Elvis Presley's bassist Jerry Scheff. Guitarist Chris Pinnick also left the group prior to the recording of the band's next album.  For the final Foster-produced album, Chicago 18, the band filled Pinnick's spot with several session guitarists, none of whom became band members. The album was released on September 29, 1986, and included the No. 3 single "Will You Still Love Me?", and Top 20 Pop song "If She Would Have Been Faithful...", in addition to an updated version of "25 or 6 to 4" with a video that got airplay on MTV. Soon after the album was recorded, the band hired guitarist Dawayne Bailey, formerly of Bob Seger's Silver Bullet Band. Bailey and Scheff had previously played in bands together, so Scheff introduced Bailey to the band in time for the Chicago 18 tour.  For the 1988 release, Chicago 19, the band had replaced producer Foster with co-producers Ron Nevison, who had recently produced two albums for Heart, and Chas Sanford, who had worked with Rod Stewart and Stevie Nicks. They topped the charts again with the Diane Warren-composed single "Look Away". It was the third and last Chicago single to reach No. 1 on the Hot 100 chart. The song ultimately was named as the "Billboard Hot 100 No. 1 Song of the Year" for 1989. The album also yielded two more Top 10 hits, "I Don't Wanna Live Without Your Love" and "You're Not Alone", both with Champlin singing solo lead for the first time, and the Scheff-sung No. 55 single, "We Can Last Forever," in addition to including the original version of a Top 5 single titled "What Kind Of Man Would I Be?". The latter, also sung by Scheff, was remixed for inclusion on the band's forthcoming greatest hits record (and 20th album), Greatest Hits 1982-1989, and it was this version that became a hit.
Question: Did Peter Cetera and/or Chicago ever talk about getting back together?
Answer: