Puzzle

 ACROSS

  1 "Louder, louder than a lion" Katy Perry song

  5 Load-bearing Titan

 10 It's between two vertebrae

 14 Continental currency

 15 Worker at a forge

 16 Post-shaving brand

 17 Muscles exercised on a leg day in Norfolk, slangily?

 20 "Ceci n'est pas ___ pipe"

 21 Nora Roberts novels

 22 Quickly, in music

 26 Encountered

 27 Thrilla in Manila boxer

 28 Pigeon sounds

 29 Teddy alternative?

 31 Tip jar bills

 32 Yank

 33 This, in Spanish

 35 Catch, as a crook

 37 Sleepwear with a red fruit printed on it, slangily?

 42 Exist

 43 Oil grp.

 44 Tuna that's usually seared

 46 Album Beyonce released when she turned 25

 49 "Hey! Over here!"

 51 Sausage often paired with beer, familiarly

 52 Lexicon from a British uni

 53 Agt.'s cut

 54 DNA components

 57 Headwear at an "Aida" performance

 60 Sewer critter

 61 Picnic foods enjoyed near El Capitan, slangily?

 66 ___ Spumante

 67 Hard on the eyes, color-wise

 68 Tip-top

 69 Listen to, as advice

 70 Like thick fog

 71 Home in a tree

DOWN

  1 Race, as an engine

  2 Yes, in Paris

  3 Part of ETA: Abbr.

  4 Rascals

  5 Actor Ed

  6 Response to oversharing, in texts

  7 Dramatic courtroom shout

  8 Not out and about

  9 "I should've known better!"

 10 "Humble" album

 11 "... assuming it's possible"

 12 '80s TV character Remington

 13 Liqueur in a kir

 18 Gerund's finish

 19 Place to do yoga

 22 Exam with a max score of 36

 23 Unmannerly sort

 24 Golden arches, for McDonald's

 25 ___ von Bismarck

 30 Some Wyndham hotels, informally

 31 Kimono go-with

 33 Good listener?

 34 Blended-family member

 36 Big name in theaters

 38 Month to honor Mom

 39 Many NYC dwellings

 40 Be worthy of

 41 Roe fish

 45 That thing's

 46 "Go me!"

 47 Boot from office

 48 "___ Fideles" (Christmas carol)

 50 Sculptor's creation

 51 Gotham City hero

 53 "Foxy Brown" star Grier

 55 Exchange

 56 Slam into

 58 Tara of "Sharknado"

 59 Bird seen in the afternoon?

 62 Bro's sib

 63 Neat drink's lack

 64 Ambulance letters

 65 Complete collection

Solution