LOOK: Miranda Lambert Tweets Pics Of Hanging Out At Darien Lake Water Park [VIDEO]

If you thought you saw Miranda Lambert hanging out in the water park at Darien Lake this weekend, you weren't seeing things!

Buffalo got quite the treat on Sunday at Chris Stapleton's 'All American Road Tour' as Miranda made a couple of appearances on the stage. Her boyfriend, Anderson East was opening up the show for Chris Stapleton in Buffalo at Darien Lake and she was in town to celebrate Anderson's 30th birthday.

East's band and Lambert hit up the water park inside Darien before they show and then you can see they celebrated with a cake on the bus and enjoyed the night out at Darien Lake.

Later in the evening, Lambert joined Stapleton and his wife on stage to sing 'Fire Away'.