The phrase "a festival called" is correct and usable in written English.
It can be used when introducing the name of a specific festival or event.
Example: "Every summer, we attend a festival called the Summer Music Fest, which features various artists and food vendors."
Alternatives: "an event named" or "a celebration known as".
There is only so much innovation a music director can bring to a festival called Mostly Mozart.
A little farther downtown, music, poetry, and dance from Spain's northeastern corner come to life in a festival called "Made in CataluNYa: Catalan Culture in New York".
In December, Colin Davis and the London Symphony Orchestra presented five of Sibelius's seven symphonies in a festival called Northern Lights at Lincoln Center.
This fall, Carnegie Hall, in league with the New York Philharmonic and other organizations, has been presenting a festival called "Bernstein: The Best of All Possible Worlds".
Tens of thousands of pilgrims travel to the temple daily during special nine-day periods to celebrate the Hindu mother goddess in a festival called Navratras.
Berger approvingly said that the American salad bar chain Sweet Green has a festival called Sweet Life – though this got a snort from Win Butler.
Other tribal celebrations that provide occasions for music and dancing include the festival of flowers known as Sarhul (or Baha), a cattle festival called Sohrai, and a postharvest festival called Mage Parab.
The veteran psych-pranksters Animal Collective have announced that they're hosting a new festival, called A N I M A L C O L L E C T I V E Camping Weekend.
To goose revenues, Oldenburg has launched a variety of themed events like a Halloween Boo at the Zoo, an Easter Eggstravaganzoo and a spring festival called Zoolebrate.
New Music, New York inspired a rotating festival called New Music America, which for a decade colonized a different city each year and helped spread the downtown gospel.
In 2010, 21 young people were crushed to death in Duisberg, Germany, during a music festival called the Love Parade, which was taking place on a new site.
