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: "who is singing at all star weekend 2018?" whose answer is Kevin Hart.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who is singing at all star weekend 2018
Useful Output:

Doc 1: The All-Stars Weekend finale party features live performances from Mike Will Made It, who is set to debut a new track, as well as Lil Rico and
Doc 2: Fergie's sultry rendition of "The Star Spangled Banner" left some viewers of the 2018 NBA All-Star Game scratching their heads.
Doc 3:  Singer Fergie sings the national anthem before the 2018 NBA All-Star Game, evoking a few laughs from players and fans inside Staples Center.
Doc 4: Singer Fergie sings the national anthem prior to The 67th NBA All-Star Game: Team LeBron Vs. Team Stephen at Staples Center on February 18, 2018
Doc 5: Singing this year's national anthem in Anthony Hamilton. The 48-year-old from North Carolina is a singer and songwriter who first emerged onto