Neymar scored a spectacular goal as Barcelona came from behind to defeat Paris St-Germain at the Nou Camp and finish top of Group F.
Zlatan Ibrahimovic gave PSG the lead with a low finish from 10 yards after being teed up by Blaise Matuidi.
But Barcelona equalised through Lionel Messi, his 75th goal in the competition coming after Luis Suarez's low cross.
Neymar's sublime 25-yard finish and Suarez's close-range effort sealed PSG's fate, but they still go through.
Neymar's goal was a wonderful effort, the Brazil striker bursting away from the PSG defence before producing a dipping, swerving shot from distance that flew past Salvatore Sirigu.
Then in the second half Sirigu parried Neymar's shot and former Liverpool star Suarez pounced to score his second goal since moving to Spain. The victory means Barcelona have finished top of their Champions League group for the eighth season in a row.
However, the French side missed several good chances and their profligacy resulted in their first Ligue 1 or Champions League defeat of the season. PSG striker Edinson Cavani also had a shot cleared off the line by Barcelona defender Marc Bartra.
"We have improved as a group a lot," said Uruguay striker Suarez."We know that together we can go places, and that's what we're doing."
Barcelona finish with 15 points from six games, two more than Paris-St Germain, who will be unseeded in next Monday's last-16 draw.
PSG head coach Laurent Blanc praised Barcelona's finishing. "The best players don't need much to convert a tiny chance into a goal,'' he said. "That is what happened for Barcelona's first two goals.''
