They'll also be performing on the Lock Up stage as The Bronx.
Reading & Leeds Festival 2015's ever expanding line-up continues to grow with yet more acts announced to appear across the many stages; some of which are well-established, and some up-and-coming, but all definitely worth experiencing this year.
Kicking off proceedings, Mariachi el Bronx will be bringing a little Mexican spirit to the UK festival - which will be just as well if the English weather lets us down come August. They'll be joining headliners Metallica, Mumford & Sons and The Libertines, plus many more top billing artists such as Kendrick Lamar, Alt J and Bring Me The Horizon.
The Mariachi quintet will also morph back into their LA punk outfit, The Bronx, later on, performing on the The Lock Up Stage with more alternative rock bands the likes of Baroness, Bo Ningen, God Damn, Vant, Skinny Lister, No Devotion and As It Is.
The BBC Radio 1 Stage offers some super current acts like France's Sound of Brit Awards 2015 winners The Struts, who make their Reading and Leeds debut this year; Chicago's Twin Peaks who released their second album just last year; and Manchester singer Shura who's currently making waves with her latest single '2Shy'.
Mariachi El Bronx to open Reading & Leeds 2015
Similarly, the BBC Radio 1 Dance Stage brings yet more international up and coming talent in the form of Sydney's Hayden James, Berlin house producer Ferdinand Weber, London duo Maribou State, France-born singer Petite Meller and Rick Boardman's band The Six, and then of course there's all the solid favourites like Dj Fresh with his live set and Ireland's The Riptide Movement. Plus, the BBC 1Xtra Stage adds more hotly tipped acts like singer Remi Miles, rapper Young Thug and DJ duo Star.One.
Mixing it up even more with global talent and bands old and new is the Festival Republic Stage. As well as South African rock legends Seether, you can see some young blood in the shape of Sunset Sons from Australia, Neon Waltz from Scotland, Spring King from Manchester and The Last Internationale from New York City.
Weekend tickets for the festival which takes place on August 28th - 3th 2015 are priced at £205.00 plus fees.