Complex sentence: At first, Walt Disney did not care for "Ugly Bug Ball", but songwriter Robert Sherman explained to them that to bugs, other bugs were not ugly even if they looked ugly to us, beauty being in the eye of the beholder.
Split into simpler sentences: At first, Walt Disney did not care for "Ugly Bug Ball". Songwriter Robert Sherman explained to Disney that to bugs, other bugs were not ugly, even if they looked ugly to us, beauty being in the eye of the beholder.