| 2006 | Self-released the debut album 'Analog Heart' as an independent artist, establishing his singer-songwriter identity before national recognition. |
| 2008 | Won season seven of ABC's 'American Idol,' defeating runner-up David Archuleta with 56 percent of the final vote to launch his major-label career. |
| 2008 | Released his self-titled RCA Records debut featuring collaborations with Chris Cornell, Collective Soul's Ed Roland, and Our Lady Peace's Raine Maida, debuting at number three on the Billboard 200. |
| 2008 | Earned platinum certification for the 'David Cook' album from the RIAA, with the single 'Light On' anchoring his radio presence throughout the year. |
| 2011 | Released 'This Loud Morning' on RCA Records, debuting at number seven on the Billboard 200 and showcasing a harder rock direction than his debut. |
| 2015 | Released the studio album 'Digital Vein,' exploring synth-influenced production on his most sonically adventurous record to that point. |
| 2018 | Released the EP 'Chromance,' featuring the single 'Death of Me' and signaling a continued willingness to push beyond his post-Idol sound. |
| 2021 | Released the EP 'The Looking Glass,' marking his first new studio project since 'Chromance' and sustaining momentum with his fan base. |
| 2022 | Released the single 'TABOS (This'll All Be Over Soon)' and returned to the 'American Idol' stage for the show's 20th-anniversary reunion special. |
| 2024 | Released the single 'Dead Weight,' co-written with longtime collaborator Andy Skib, and the charity single 'This Time Tomorrow 16' in support of the This Time Tomorrow Foundation. |