Task: Question Generation
Input (English): Passage: In August 2015, it was announced that Bowie was writing songs for a Broadway musical based on the SpongeBob SquarePants cartoon series. Bowie wrote and recorded the opening title song to the television series The Last Panthers, which aired in November 2015. The theme that was used for The Last Panthers was also the title track for his January 2016 release Blackstar which is said to take cues from his earlier krautrock influenced work. According to The Times: "Blackstar may be the oddest work yet from Bowie". On 7 December 2015, Bowie's musical Lazarus debuted in New York. His last public appearance was at opening night of the production.Blackstar was released on 8 January 2016, Bowie's 69th birthday, and was met with critical acclaim. Following his death on 10 January, producer Tony Visconti revealed that Bowie had planned the album to be his swan song, and a "parting gift" for his fans before his death. Several reporters and critics subsequently noted that most of the lyrics on the album seem to revolve around his impending death, with CNN noting that the album "reveals a man who appears to be grappling with his own mortality". Visconti later said that Bowie had been planning a post-Blackstar album, and had written and recorded demo versions of five songs in his final weeks, suggesting that Bowie believed he had a few months left. The day following his death, online viewing of Bowie's music skyrocketed, breaking the record for Vevo's most viewed artist in a single day. On 15 January, Blackstar debuted at number one on the UK Albums Chart; nineteen of his albums were in the UK Top 100 Albums Chart, and thirteen singles were in the UK Top 100 Singles Chart. Blackstar also debuted at number one on album charts around the world, including Australia, France, Germany, Italy, New Zealand, and the US Billboard 200.As of 11 January 2016, more than 1.3 million people had visited the David Bowie Is exhibit, making it the most successful exhibition ever staged by the Victoria and Albert Museum in terms of worldwide attendance. The museum stated that the exhibition would continue to tour, with confirmed travel to Japan in 2017. At the 59th Annual Grammy Awards, Bowie won all five nominated awards: Best Rock Performance; Best Alternative Music Album; Best Engineered Album, Non-Classical; Best Recording Package; and Best Rock Song. The wins marked Bowie's first ever in musical categories.An EP, No Plan, was released on 8 January 2017, which would have been Bowie's 70th birthday. Apart from "Lazarus", the EP includes three songs that Bowie had recorded during the Blackstar sessions, but were left off the album and subsequently appeared on the soundtrack album for the Lazarus musical in October 2016. A music video for the title track was also released. Since January 2016, Bowie has sold 5 million units in the United Kingdom alone.
Output (English): By January 2016, how many million people had visited the exhibit to the man who wrote songs for a SpongeBob SquarePants musical?