Complex sentence: Bridge and the rest of the group later signed a deal with Island Def Jam Records and Mercury Records worth $1.5 million to distribute their music in the United States, which led to her first UK number-one single "What About Us".
Split into simpler sentences: Bridge and the rest of the group later signed a deal with Island Def Jam Records and Mercury Records worth $1.5 million to distribute their music in the United States. Which led to her first UK number-one single "What About Us".