Do at the Zoo celebrates 25 years with Under a Blood Red Sky this June

The Denver Zoo has nearly 4,000 mouths to feed every day of the year, and that adds up to a hell of a grocery bill. But events like the annual Do t the Zoo gala help a lot toward filling zoo coffers. And this year's Do on June 19 -- the gala's 25th anniversary celebration -- will go extra-big to raise funds for day-to-day upkeep by bringing in popular U2 tribute band Under a Blood Red Sky to re-create the U2 experience on the Conoco Zoo Gardens stage.

See also: Photos and video: Denver Zoo hand-raising twin clouded leopard cubs born this month

Along with UaBRS and some great warm-up acts, the shindig includes food from top Denver restaurants, night-time animal encounters and dancing under the stars.

Do At the Zoo tickets, $175 or $300 for the VIP treatment, are now on sale online -- and it's best to get them early, because the event will most likely sell out, as it has for the last two years.

And now a moment of heartbreaking cuteness, courtesy of the Denver Zoo (don't say we didn't warn you):

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