The Power of Half its Sunday collections to a local charity. Baumberger remarked: "What will we learn by practicing the power of half? What will this program teach our children and youth? I cannot wait to find out." Melinda Gates, wife of Microsoft founder Bill Gates, said she was inspired by the Salwens' philanthropic efforts. On December 9, 2010, Bill Gates, Mark Zuckerberg (Facebook's CEO), and investor Warren Buffett signed a promise they called the "Gates-Buffet Giving Pledge", in which they promised to donate to charity at least half of their wealth. After launching the Giving Pledge, the Gates invited the Salwens to Seattle
What Time Is Love? for sampling", and suggested "We might put out a couple of 12-inch records under the name The K.L.F., these will be rap free just pure dance music, so don't expect to see them reviewed in the music papers." The first incarnation of "What Time Is Love?" followed. "What Time Is Love?" became one of The KLF's central tracks, dubbed their "three-note warhorse of a signature tune" by Bill Drummond, in reference to the three-note bassline which, together with a high-pitched refrain on two notes (B bending to F#) characterises the song. The bassline is very similar to the one used