CREATE TABLE table_204_220 (id DECIMAL, "entered" TEXT, "weeks in\ top 10" DECIMAL, "single" TEXT, "artist" TEXT, "peak" DECIMAL, "peak\ reached" TEXT, "weeks\ at peak" DECIMAL)

which artist only has its single entered on 2 january 1994 ?
SELECT "artist" FROM table_204_220 WHERE "entered" = '2 january 1994'
SELECT "artist" FROM "table_204_220" WHERE "entered" = '2 january 1994'