Crossword clues for That'll be the day! 4 lettersAnswerClueMAMAWho "said there'll be days like this," in a 1961 hitIDIEThis'll be the day that ___ (final words in the song "American Pie")WEEKIt'll last for daysASIFThat'll be the day!IBETThat'll be the day!AKEGHe'll break some day like ___ of ale--Edward Arlington RobinsonDONT___ you cry, I'll be back again some day ("Frosty" lyric)ACOLDIt'll be _ day...OOHCHILD1970 hit with the lyric "Some day, we'll walk in the rays of a beautiful sun"ACOLDIt'll be ___ day in hell when ...RUEYou'll __ the day!ACOLDIt'll be ___ day in hell ...MAMASAEGO/IDTitle lyric that precedes "There'll be days like this" in a Shirelles classicRUEYou'll ___ the day!ACOLDIt'll be ___ day in Hades . . .ENOOne day I'll write a puzzle that doesn't include this Roxy Music co-founderSTEALI feel you, Johanna / And one day I'll ___ you ("Sweeney Todd" lyric)HAHThat'll be the day!BUDDYHOLLY*"That'll Be the Day" singerMOMShe'll have her day (it's this Sunday)WHENPIGSFLY*"That'll be the day"IWOULDNTBETONITThat'll be the day!DAVIDESSEXThat'll Be the Day star, 1974TOBEAI'll labor night and day ___ pilgrim.BENDERSomething you'll often regret the next dayREDWhat you'll see plenty of on Valentine's DayTHEThat'll be ___ day!THEThat'll be _____ day!