Crazy in Love — Beyonce ft. Jay-Z (2003)

Few 2000s songs equal the seismic impact of “Crazy in Love,” which outperforms both “Hey Ya!” (#2) and “Since U Been Gone” (#3) in terms of immediate cultural penetration. Its iconic horn loop, driven by a relentless uptempo beat and Beyoncé’s fiery vocal, dominated radio for 8 consecutive weeks. The track spent 27 weeks in the Billboard Hot 100’s top 10, 10 more than the typical number-one single of that year. Beyoncé’s solo debut also sold over 200,000 copies in its first week, a figure that surpasses the debut-week sales of #4’s “In Da Club.” The jaw-dropping, choreography-heavy video cemented a new visual standard for pop stardom. With an energy that remains undimmed, this song redefined the solo female pop archetype and remains a benchmark for the entire decade.