Countdown - Homecoming Live

This playful track samples Boyz II Men's 1991 R&B single "Uhh Ahh." "Boyz II Men were the first ones to put Destiny's Child on tour," Beyoncé told Just Jared during a pre release listening party for 4. "They showed us how to treat an opening act and I will never forget that."

Just Jared asked Beyoncé what Jay-Z thought of this song? "He liked it," she replied. "I don't think he was dissecting it, just thinking of what he could do to it as a rapper."

The line "London speed it up" references the input for 4 from DJ and house producer Switch who hails from England's capital city.