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 had a hit with it must be him in 1968?" whose answer is Vikki Carr.
Each document should contain about 30 words, and these documents should contain useful information.

Query: "It Must Be Him" 1968 hit song
Useful Output:

Doc 1: Vikki Carr performs 'It Must Be Him' on The Ed Sullivan Show on  The song was a hit single for Carr, reaching #3 on the US Billboard
Doc 2: Diane Varga with The Ray Anthony Band performing It Must Be Him and Can't Take My Eyes Off You (1968)
Doc 3: Vilma Valera - It Must Be Him (Lyrics) Artist: Vilma Valera Released: 1968 Recorded: 1968 Genres: Easy Listening, Traditional Pop,
Doc 4: RAY CONNIFF: IT MUST BE HIM (1968). 27K views · 3 years ago more. Daniel Victor Lima. 57.3K. Subscribe. 682. Share.
Doc 5:  It must be him or I shall die Or I shall die Oh hello, hello my dear  Music Publishing Group.