The Simpsons: Tapped Out Homerpalooza content update

"Dinosaurs, sphinxes and pirates… Oh my! History's back to being old news and time travel is once again left to eccentric inventors and sci-fi writers. With the past put back in its proper place (minus a dinosaur or two), what's next for Springfield? A summer time sing-off? A gathering of prideful pontificators? Or just a few weeks of vacation for the Tapped Out employees… Oh, definitely not that. Stay tuned for more characters, buildings and stories coming soon!"

- Update teaser on app stores.

"Have all the fun of a music festival with none of the smells! Join in as various citizens shed their normal lives (and attire) to jam out! Manage your performers to increase show payouts, create the setlist and keep the show going to draw in the suckers, err, crowds and make Springfield the hottest music festival since that Fire-Something Fest. Play today and party on!"

- Update description on app stores.

The Simpsons: Tapped Out Homerpalooza content update was released on August 1, 2017, and is the one hundred and fifty-fourth content update. It was teased in the Stunt Cannon update.

August 1st Update (4.28.0; "4_28_Music")

 * The Splash Screen and App Icon were changed.
 * New Daily Challenges were added for the event.
 * A new row and a new column of land was added.
 * The social icon was changed.
 * The decorations limit was increased to 10.200.
 * Placing Black Leather Plane now yields instead of.
 * During the event, Moe's Tavern now requires Level 5 to unlock.
 * Lemon Tree can now be stored.
 * Building Woodstock Casino now yields, lasts 6 seconds and its task is now premium.
 * Placing Walk of Fame Star now yields.
 * A new character group was added, Musicians: Sherri and Terri, Homer, Lisa, Willie, Martin, Otto, Database, Janey, Lurleen, Dewey Largo, Rockstar Maggie, Cecil Terwilliger, Sideshow Bob, Jay G, Luke Stetson, Sophie Krustofsky, Bleeding Gums Murphy, Nick Delacourt, Peter D'Abruzzio, Freddy Freeman, Shredder Stevens, Alaska Nebraska, Leon Kompowsky, Rachel Jordan and Alcatraaaz.
 * A new character group was added, Bass Enthusiasts, with just Homer.
 * Guitar Central now requires Level 5 instead of 14 (visible) or 17 (buyable).
 * Youngsters can no longer Buy Instrument He'll Never Learn to Play.
 * The quest Two Minutes of Hate now requires Level 5 instead of 17.
 * Placing Taste of Duff Beer Truck now yields instead of.
 * Alcatraaz, Alaska Nebraska, Shredder Stevens, Freddy Freeman, Peter D'Abbruzzio, Nick Delacourt and Weird Al Yankovic were added to the characters that can't Attend Fundraiser and Elite Join an Angry Mob.
 * Señor Ding Dong's Doorbell Fiesta and Pies for Guns Booth were removed from the Buildings inventory group.
 * Fiesta Terrace was removed from the Houses inventory group.
 * Rockstar Maggie's Plug a Cable into Her Head is now located at Simpson Home}} instead of PolyVac.
 * Building Springfield Bowl now yields instead of.
 * Snake was excluded from the job Go to Fallout Boy Insult Club.
 * Placing Welcome Bob Sign now yields instead of.
 * Placing Outdoor Opera Seats now yields instead of.
 * Placing Outdoor Opera Ticket Booth now yields instead of.
 * Barbarian Statue was removed from the items obtainable from digging at the Excavation Site.
 * Placing Camping Tent now yields instead of.
 * In the quest The Whickerman, Satyr Willie's dialogue is said by Willie instead.
 * During the event, Money Mountain and World's Largest Redwood questlines were disabled.
 * A new date for Classic Mini Events was added, from September 28th to October 2nd. If Deep Space Homer wasn't completed, and the user Level 60, it may enable the event again for that period of time. The scripts for it are not configured yet.

August 10th Update (4.28.2; "4_28_Music_Patch2")

 * Weird Al Yankovic's annoyed and surprised text icon were changed.
 * Pop Stage and Hip-Hop Stage's session banner were added.
 * The glitch preventing placing roads, water, etc. in the last land released with the event was fixed.
 * The town center was changed to the act's stage while each act is active.
 * Money Mountain and World's Largest Redwood questlines were reenabled.
 * Instead of saying "Choose your musicians!", the venue screens now say "Choose your Rock/Pop/Hip-Hop musicians!".
 * The event bonus donuts text was changed from "Free donuts for every 5000 Sunglasses collected!" to "Free donuts for every 10000 Sunglasses collected!" and from "Free donuts for every 5000 Blings collected!" to "Free donuts for every 15000 Blings collected!".

August 18th Update 1 ("4_28_Music_Patch3")

 * A new quest was added for the 1 year and 1 day anniversary since the re-release of the game on August 16, 2017.
 * Flaming Moe's' description was changed from "A new appearance for Moe's Tavern." to "From Season 3, Episode 10 "Flaming Moe's".

August 18th Update 2 ("4_28_Music_Patch4")

 * The Five Year Anniversary quest was removed.

August 28th Update (Server Update)

 * The prices for Act 3 Prizes were changed:
 * Hip-Hop Stage was changed from to.
 * Free Land Token and New venue for Jams: Krusty Burger were changed from to.
 * All Sales Vinyl was changed from to.
 * Rappin' Bart was changed from to.
 * 600 Festival Tickets were changed from to.
 * Manager Cletus Bundle (Cletus' Monster Truck w/Manager Cletus) was changed from to.

September 11th Update ("4_28_Music_Patch5")

 * Pop Stage, Simpson House, Kwik-E-Mart, Krusty Burger and Springfield Elementary's stage screen's banner were changed.

Trivia

 * The splash screen is a tribute to the artist.