NEW YORK (AP) — Stevie Wonder, whose advocacy helped make the Rev. Martin Luther King Jr.’s birthday a national holiday, is urging the incoming Biden administration to form a national commission on equality. Wonder released a video message Monday in the form of an open letter to King, who was assassinated in 1968 and whose birthday was made a federal holiday late in 1983. Wonder met King when he was a teenager and later wrote the tribute song “Happy Birthday,” which urged that the government formally establish a Martin Luther King Jr. Day.