CREATE TABLE table_63599 ("Date" FLOAT, "Single" TEXT, "Backed with" TEXT, "Record label" TEXT, "Format" TEXT, "Other details" TEXT)

What's the format of the single, I Can't Stay?
SELECT "Format" FROM table_63599 WHERE "Single" = 'i can''t stay'
SELECT "Format" FROM "table_63599" WHERE "Single" = 'i can\'t stay'