"Have a Nice Day" is the second single from rock band the Stereophonics taken from the their third album Just Enough Education to Perform. Produced by Steve Bush and Marshall Bird, it was released on 11 June 2001. The single reached number five in the UK charts.
The lyrics for "Have a Nice Day" are based on a cab fare Stereophonics took in San Francisco Bay when they were touring in the United States. When the band got in the back of the cab the driver said to them, "I hate this place, it's full of tourists and processed fish". He explained to the trio that he was a poet who believes everyone in the world are alike; the only difference is the accents. At the end of the journey the driver ended the conversation with: "That'll be seven bucks, have a nice day". After the cab journey lead singer and guitarist Kelly Jones took the conversation and placed it into the lyrics.
"Have a Nice Day" received negative reviews from music critics. When reviewing the album, John Dark from Drowned in Sound said it "has more sap than a Vermont maple." He was also critical of the song's narrative structure and signature line: "ba-ba-ba's".NME summarised the song as a "beige smudge of a song".
"Have a Nice Day" debuted at number five in the UK Charts, making it the band's fifth single to chart in the top 5 and it remained in the charts for nine weeks. After thirteen years the BPI awarded the song with a silver certification. On the Irish Singles Chart the single peaked at number five and remained in the charts for eleven weeks. In New Zealand the single debuted at number forty-two on 5 August 2001 before reaching number thirty-seven the following week and remained in the chart for four weeks. The song appeared in the Dutch Top 40 charts on 16 June 2001 at number ninety-five, it ascended to number eighty-seven for the next two weeks until it reached its peak position at number eighty-four. It remained in the charts for the next six weeks until it dropped out. In the United States, "Have a Nice Day" is the only Stereophonics single to chart on the Adult Top 40, peaking at number twenty-six.