90s Rock Vault 🤘 on Instagram: "Weezer Bring “Say It Ain’t So” to Letterman “Say It Ain’t So” – Weezer (1995, Late Show with David Letterman). By the summer of 1995, Weezer’s Blue Album had slowly grown into a breakthrough success. After the quirky videos for “Undone” and “Buddy Holly,” the band pushed a third single, “Say It Ain’t So,” giving TV audiences a chance to see the group in a more stripped-down setting. On Letterman, the original lineup—Rivers Cuomo, Brian Bell, Matt Sharp, an