The Clue "Happy Birthday ___..." : Most recognized English song in the world
The Answer TOYOU
The answer "TOYOU" fits the clue because it completes the phrase "Happy Birthday to you," which is the most recognized English song in the world. This song is sung at birthday celebrations to wish someone well on their special day. Its simple melody and heartfelt lyrics make it easy for everyone to sing along. That's why "TOYOU" is the perfect answer for this crossword clue.