Analysis Summary:

The article is mostly accurate. The core claim about Carole King's surprise appearance at the "Beautiful" anniversary is plausible and not contradicted by the provided sources, although none directly confirm it. The article presents the event in a straightforward manner with minimal bias.

Detailed Analysis:

• Claim:** On Saturday, the fifth anniversary of the Broadway show "Beautiful: The Carole King Musical," the singer-songwriter herself surprised the audience by stepping onto the stage towards the end of Act 2 to perform as herself.
  • Verification Source #1, #2, #3, #4, and #5: *Fail to cover* this specific event.
  • Internal Knowledge: While I cannot definitively confirm the specific anniversary date or performance without external search, the general premise of Carole King's involvement with the musical "Beautiful" is well-known.
• Claim:** CBS News' Gayle King was backstage.
  • Verification Source #1, #2, #3, #4, and #5: *Fail to cover* this claim.
  • Internal Knowledge: It is plausible that Gayle King of CBS News was backstage, given the source of the article is CBS Entertainment.

Supporting Evidence/Contradictions:

• The provided sources do not directly support or contradict the claims in the article. They primarily focus on Carole King's songwriting career and other appearances (Verification Source #3, #5).
• The lack of coverage from the provided sources is a limitation. Without additional sources, the accuracy of the specific event described cannot be definitively verified.