Lady Gaga In Ear. Heartbeats by Lady Gaga are holistically designed to deliver the soundtrack of your life with clarity and power, as well as satisfy your passion for fashion. Immerse yourself in pitch-perfect highs, precise mids, and club caliber bass. Because when your music sounds amazing, you stop hearing it, and start feeling it. In other words, sound really matters. Plus, Lady Gaga didn’t just style-check Heartbeats, she created the design to ensure they look like no other headphone out there.