Near the end of the Glow in the Dark Tour's North American leg, West performed the song for a crowd of around 100,000 during the final night of Lollapalooza in Chicago that he headlined on August 3, 2008. The live venue was a slightly more stripped-down version of his standard Glow in the Dark Tour concert. Even though the high-budget stage did not feature holograms or lunar landscapes, it was still equipped with blinding strobes, moody lighting, and rolling fog. He performed with a space-age backing band, consisting of a percussionist/DJ setup, robo-suited guitarists, and futuristic female singers wearing foot-high shoulder pads. "Heard 'Em Say" was among the songs performed by West during a 90-minute set when he headlined the 2008 Global Gathering festival, becoming the very first hip-hop artist to do so. After teasing the audience with a snippet of his 2007 track "Stronger", West appeared in a cloud of smoke and delivered the performance. He performed to a crowd of 50,000, wearing a black jacket and a bright T-shirt.
