Crossword clues for That'll be ___ day! 3 lettersAnswerClueRUEYou'll __ the day!RUEYou'll ___ the day!ENOOne day I'll write a puzzle that doesn't include this Roxy Music co-founderMOMShe'll have her day (it's this Sunday)HAHThat'll be the day!REDWhat you'll see plenty of on Valentine's DayTHEThat'll be ___ day!THEThat'll be _____ day!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 ...ACOLDIt'll be ___ day in hell ...MAMASAEGO/IDTitle lyric that precedes "There'll be days like this" in a Shirelles classicMAMAWho "said there'll be days like this," in a 1961 hitACOLDIt'll be ___ day in Hades . . .STEALI feel you, Johanna / And one day I'll ___ you ("Sweeney Todd" lyric)IBETThat'll be the day!DAVIDESSEXThat'll Be the Day star, 1974IWOULDNTBETONITThat'll be the day!IDIEThis'll be the day that ___ (final words in the song "American Pie")AKEGHe'll break some day like ___ of ale--Edward Arlington RobinsonWHENPIGSFLY*"That'll be the day"BUDDYHOLLY*"That'll Be the Day" singerASIFThat'll be the day!WEEKIt'll last for daysTOBEAI'll labor night and day ___ pilgrim.BENDERSomething you'll often regret the next dayDONT___ you cry, I'll be back again some day ("Frosty" lyric)