Artist with the most monthly Spotify listeners at the end of Apr 2026?

The mathematical hurdle for Justin Bieber to overtake Bruno Mars in the final 48 hours of April is virtually insurmountable. As of April 28, 2026, Bruno Mars holds a commanding lead with 136.9 million monthly listeners compared to Bieber's 130.6 million. This creates a deficit of approximately 6.3 million listeners that Bieber must overcome before the April 30, 12:00 PM ET deadline. While Bieber is experiencing a significant surge following his Coachella performance and the release of SWAG II, his current daily growth rate of 1.96 million listeners is insufficient to close this gap. Even if he sustains this absolute top-end growth and Bruno Mars remains completely stagnant, Bieber would only add roughly 3.9 million listeners by the deadline, leaving him more than 2 million listeners short of the #1 spot. Furthermore, the mechanics of Spotify's monthly listeners metric work against exponential late-stage growth. The metric measures unique listeners over a rolling 28-day window. The millions of fans who tuned in during Bieber's mid-April Coachella spike are already counted in his total. To continue growing at 2 million per day, he must find entirely new unique listeners, making it highly likely his daily growth rate will decelerate rather than accelerate in the final two days.

The primary risk to a NO position is the potential for non-linear growth driven by viral social media trends. Bieber's recent momentum is historic, having achieved over 100 million streams in a single day on April 15. If a secondary viral trend utilizing a track from SWAG II hits TikTok or Instagram Reels in the final 48 hours, it could trigger an unprecedented influx of unique listeners that breaks standard linear growth models. Additionally, there is variance in how third-party trackers report Spotify's API data. While most trackers show a 6.3 million listener gap, some alternative data pulls report a narrower 4.7 million gap. If the true internal Spotify number is closer to this narrower margin, the threshold Bieber needs to cross is significantly lower. Finally, Bruno Mars's own momentum is showing signs of cooling. Some trackers indicate that Mars is actively losing listeners, posting a daily trend of -64,000. If Mars experiences a sudden, sharp drop of over 2 million monthly listeners due to the 28-day rolling window dropping a massive streaming day from late March, the target for Bieber could lower enough for him to hit #1.