Related Clues:

• A palindromic single performance
• A one-night entertainment
• Rule over in Niger
• Have sovereign power
• Palindromic one-night engagement
• A one-night musical engagement
• Rule as a sovereign
• Rule as king or queen
• Sovereign's rule
• Rule as king
• In pop parlance, a one-night performance
• A palindromic one-night performance
• Rule as sovereign
• A one-night musical performance
• A single musical performance - it's a palindrome