In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.

Passage: The band's performance at WTTW's Grainger Studio in Chicago, taped on December 10, 2015, aired on the PBS concert series Soundstage on January 26, 2017, containing the new songs "My Monster" and "Gravity". "Fun" was released on February 1, 2017, as the album's lead single. On February 8, 2017, it was announced that Blondie will join Garbage on the co-headlining "Rage and Rapture Tour" across the United States, which will kick off on July 5 in Saratoga, California, wrapping up on August 12 in Dallas, Texas. A second track, "My Monster", was released as an iTunes instant grat, and made available to those who had pre-ordered the album, on February 19, 2017. "Fun" became Blondie's most successful single in years, rising to Number 1 on Billboard's Dance Club Songs (Blondie's first appearance on that chart since 1995) and many charts in other countries.
Link Information: The band consists of Scottish singer and musician Shirley Manson and American musicians Duke Erikson, Steve Marker, and Butch Vig. All four members Answer: four
How many members comprise the music group that Blondie announced it would join on the "Rage and Rapture Tour"?