Red-hot singer/songwriters Ingrid Michaelson and Sara Bareilles will anchor the lineup for the fourth annual Hotel Cafe tour, which begins March 6 at the Belly Up in San Diego, and wraps April 12 at the Henry Fonda Theater in Los Angeles.

Cary Brothers, Joshua Radin, Meiko and Kate Havnevik are also on the bill. Inspired by the singer/songwriter communal vibe of Hollywood, Calif.'s 200-capacity Hotel Cafe, a coffee shop-turned-music venue for which the tour is named, this year's approximately 35-date jaunt also features rotating performances from Jim Bianco, Dan Wilson, William Fitzsimmons, Priscilla Ahn and Jessie Baylin.

"This tour is as unique an experience for the performers as it is for the audience," Brothers tells "Every night, lineups and songs change so we never know what to expect."

Brothers is particularly excited to tour with Michaelson, whose Old Navy sweater commercial song "The Way I Am" helped boost her profile last year.

"Ingrid's become a good friend and a big part of the growing Hotel Cafe family in the last year, and I can't wait to roll out across the country with her and all of the artists we have scheduled this year," Brothers says.

About 15 acts will appear on various dates, but only six perform each night. A permanent traveling house band backs the musicians as they perform two 15- to 20-minute sets. Past Hotel Cafe treks have also seen surprise performances in various cities from such artists as Weezer, John Mayer, Jason Mraz, Amos Lee, Death Cab For Cutie and KT Tunstall.

After completing dates in North America, the tour will immediately visit the United Kingdom, and later travel through cities in Europe and Japan. Tickets for Stateside performances go on sale Jan. 9.