You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What album featuring guest artists Ed Sheeran and Gary Lightbody was promoted during Taylor Swift's third concert tour?" whose answer is Red.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Taylor Swift Red Tour guest artists
Useful Output:

Doc 1:  Tour : The Red Tour (2013-2014) • Date : September 19, 2013 • City : Nashville, Tennessee • Venue : Bridgestone Arena 0:00 Taylor talks about
Doc 2: Taylor Swift and Ed Sheeran performing I See Fire • Tour: The Red Tour (2013-2014) • Date: February 7, 2014 • City: Berlin, Germany • Venue:
Doc 3: The tour will kick-off on March 13 in Omaha, Nebraska and continue through September. Acclaimed singer/songwriter Ed Sheeran, whose duet with
Doc 4: Taylor Swift Red Concert Guest - Ed Sheeran · Comments2.
Doc 5: Taylor Swift's Celeb Concert Cameos · Idina Menzel · Tove Lo · Miranda Lambert · Ellie Goulding · Charli XCX · Keith Urban · Nelly · Mick Jagger.