“Sounds Great” vs. “Sound Great”: What’s the Difference?

The difference between “sounds great” and “sound great”

• "Sound great" without the "s" is not commonly used in standard English. The correct form is "sounds great" with the "s" at the end of "sound."
• The reason for this is that when referring to a singular subject or using the third-person singular pronoun (he, she, it), we add an "s" to the verb.
• So, saying "That sounds great" or "It sounds great" is the more common and grammatically correct usage.

What is the definition of “sounds great” and “sound great”?

Which is the more popular variant on the Internet?