Watch The Greatest Night in Pop (2024) HD Full Movie Free on SolarMovie. Watch The Greatest Night in Pop (2024) online free. On January 25th 1985, dozens of the era's most popular musicians gathered in Los Angeles to record a...On January 25th 1985, dozens of the era's most popular musicians gathered in Los Angeles to record a charity single for African famine relief. Setting egos aside, they collaborated on a song that would make history.