The dinner party will begin at 8 o’clock sharp.

This sentence is correct.

To determine whether the sentence "The dinner party will begin at 8 o'clock sharp" is correct, we need to consider a few grammatical and contextual factors.

1. Grammar: The sentence is grammatically correct. It consists of a subject ("the dinner party") and a verb ("will begin"), which agree in terms of tense and number. The time reference "at 8 o'clock sharp" is also placed correctly.

2. Context: The sentence makes sense in the context of a dinner party since it mentions a specific time (8 o'clock sharp) at which the event will start.

Overall, based on the information provided, the sentence "The dinner party will begin at 8 o'clock sharp" appears to be correct.