"Tardy for the Party" is a song by American television personality Kim Zolciak; it was independently released on September 1, 2009. The track was written and produced by her fellow The Real Housewives of Atlanta cast member Kandi Burruss, and saw additional lyrical contributions from Zolciak, Brandon Joel Bowles, and Darnell Richard.

Based on this passage, who wrote don't be tardy for the party? Let's think fast. Stream of consciousness:
To answer this question, we should know that: "Tardy for the Party" is a song by American television personality Kim Zolciak; it was independently released on September 1, 2009. So the final answer is Kim Zolciak.