Playing just their second tournament together, Hingis and Lisicki followed up earlier upsets of No.6 seeds Andrea Hlavackova and Lucie Safarova and No.5 seeds Cara Black and Sania Mirza with a 46 64 105 win against the No.2 seeds, winning six points in a row from 4-5 in the match tie-break to end it.
"Obviously it's very exciting when you convert match point and you're like, 'Yes, we did it,'" Hingis said. "But Sabine played incredible. That super tie-breaker, I was like, 'Okay, I better put the ball in and let her do the rest.' Because she was really on fire. From 5-all on it was just amazing. She definitely gets going when it's tight - other players sometimes go down, but she lifts her level in those moments."
"I always wanted to play with Martina, obviously," Lisicki said. "We talked about it at Wimbledon last year, and finally we did it here in the States. I think we're just happy and really enjoying it."
After almost six years in retirement, Hingis returned to the doubles tour last summer, playing five WTA events alongside Daniela Hantuchova. After the US Open she didn't play for another six months but got back in the game at Indian Wells alongside Lisicki - this was their second tournament together.
Hingis was asked the obvious question in her post-match press conference - what's next?
"Well, I think two weeks ago if you asked me that question, it would probably be a completely different answer from today!" she said. "Last week, I was like, 'I'm not sure if I want to put myself out there like this and lose first, second round. But now, after this victory, definitely things have changed.
"I would be very happy to continue to play some more doubles."
Hingis now has 38 WTA doubles titles, having won 37 between 1995 and 2007 (11 with Anna Kournikova, eight with Jana Novotna, three with Arantxa Sánchez-Vicario and Helena Sukova, two with Mirjana Lucic-Baroni, Mary Pierce and Natasha Zvereva and one each with Lindsay Davenport, Gigi Fernández, Mary Joe Fernandez, Maria Kirilenko, Barbara Schett and Nathalie Tauziat).